Die Pflanzenfeinde aus der Klasse der Insekten. Ein nach Pflanzenfamilien geordnetes Handbuch sämmtlicher auf den einheimischen Pflanzen bisher beobachteten Insekten zum Gebrauch für Entomologen, Insektensammler, Botaniker, Land- und Forstwirthe und Gartenfreunde - Kaltenbach, J. H. (Johann Heinrich), 1807 -1876 (J. Hoffmann, 1874)

Pflanzenschutz nach Monaten geordnet; eine Anleitung für Landwirte, Gärtner, Obstbaumzüchter &c - Hiltner, Lorenz (E. Ulmer, 1909)

Die Pflanzenwelt Deutschlands; Lehrbuch der Formations- biologie. Eine Darstellung der Lebensgeschichte der wildwachsenden Pflanzenvereine und der Kulturflächen - Graebner, Paul, 1871 -1933 (Quelle & Meyer, 1909)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 1988)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 2000)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 2003)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 2006)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 2009)

Phegea - Vlaamse Vereniging voor Entomologie. (Vlaamse Vereniging voor Entomologie, 2015)

The Philosophical magazine and journal : comprehending various branches of science, the liberal and fine arts, agriculture, manufactures, and commerce (R. Taylor, 1822)

The Philosophical magazine : comprehending the various branches of science, the liberal and fine arts, geology, agriculture, manufactures and commerce (Richard Taylor and Co, 1798)

The philosophy of zoology; or, A general view of the structure, functions, and classification of animals - Fleming, John, 1785 -1857 (A. Constable, 1822)

Phylloxera vastatrix. Enquête de l'Académie des Sciences, pendant les années 1873 à 1878. Recueil de documents - Académie des sciences (France) (Gauthier-Villars, 1879)

Pictorial practical rose growing; a concise guide describing the propagation, pruning, and general culture of roses, both out of doors and under glass - Wright, Walter P. (Walter Page), 1864 -1940 (Cassell and company, limited, 1902)

Pinacographia : illustrations of more than 1,000 species of north-west-European Icheumonide, sensu Linnaeano = Afbeeldingen van meer dan 1,000 soorten noord-west-Europeesche sluipwespen (ichneumones sensu Linnaeano) - Snellen van Vollenhoven, S. C. (Samuel Constant), 1816 -1880 (Martinus Nijhoff, 1880)

Pinacographia. Illustrations of more than 1,000 species of north-west-European Ichneumonide, sensu Linnaeano. Afbeeldingen van meer dan 1,000 soorten noord-west-europeesche sluipwespen (ichneumones sensu Linnaeano) - Snellen van Vollenhoven, S. C. (Samuel Constant), 1816 -1880 (M. Nijhoff, 1880)

Plant pest handbook for Connecticut - Britton, Wilton Everett, 1868 -1939 (Connecticut Agricultural Experiment Station, 1933)

The Plough, the loom and the anvil - Skinner, John S. (John Stuart), 1788 -1851 (J.S. Skinner, 1848)

Polskie pismo entomologiczne = Polish journal of entomology = Bulletin entomologique de Pologne - Polski Zwiazek Entomologiczny (Panstwowe Wydawn. Naukowe, 1924)

Pomologische Monotshefte - Lucas, Eduard, 1816 -1882 (E. Ulmer, 1874)

The popular encyclopedia; being a general dictionary of arts, sciences, literature, biography, history, and political economy, reprinted from the American edition of the "Conversations lexicon" ... with dissertations on the rise and progress of literature (Blackie, 1900)

The Popular science monthly - Harry Houdini Collection (Library of Congress) (Popular Science Pub. Co., etc, 1884)

Populäre Naturgeschichte der drei Reiche - Jussieu, Adrien de, 1797 -1853 (Verlag von Scheible, Rieger & Sattler, 1845)

Practical and scientific fruit culture - Baker, Charles R. (Lee and Shepard, 1866)

The Practical entomologist - American Entomological Society. (Entomological Society of Philadelphia, 1865)

Practical foresty; a popular handbook on the rearing and growth of trees for profit or ornament - Webster, A. D. (Angus Duncan), 1855 -1931 (W. Rider, 1917)

A practical guide to garden plants, containing descriptions of the hardiest and most beautiful annuals and biennials, hardy herbaceous and bulbous perennials, hardy water and bog plants, flowering and ornamental trees and shrubs, conifers; hardy ferns; hardy bamboos and other ornamental grasses. Also the best kinds of fruits and vegetables that may be grown in the open air in the British Isles with full and practical instruction as to culture and propagation - Weathers, John, 1867 -1928 (Longmans, Green, 1901)

A practical handbook of British birds - Witherby, H. F. (Harry Forbes), 1873 -1944 (Witherby, 1920)

Practical hints for the field lepidopterist. I - Tutt, James William, 1858 -1911 (E. Stock, 1908)

Practical hints respecting moths and butterflies, with notices of their localities : forming a calendar of entomological operations throughout the year, in pursuit of Lepidoptera - Shield, Richard. (John Van Voorst, 1856)

The practice of forestry, concerning also the financial aspect of afforestation - Maw, Percival Trentham. (T.F. Unwin, 1909)

The practice of forestry : concerning also the financial aspects of afforestation - Maw, Percival Trentham. (T. F. Unwin, 1909)

Primae lineae systematis naturæ : nexui naturali omnium evolutionique progressivae per nixus reascendentes superstructi - Gori͡aninov, Pavel Fedorovich, 1796 -1865 (Typis Karoli Krajanis, 1834)

The principles of fruit-growing, with applications to practice - Bailey, L. H. (Liberty Hyde), 1858 -1954 (The Macmillan Company, 1915)

Principles of physiology, general and comparative - Carpenter, William Benjamin, 1813 -1885 (John Churchill, 1851)

Proceedings - Dorset Natural History; Archaeological Society.

Proceedings. - Entomological Society of Ontario. (1887)

Proceedings - Entomological Society of Canada (1863-1871) (Entomological Society of Ontario, 1900)

Proceedings - Entomological Society of Canada (1863-1871) (Entomological Society of Ontario, 1895)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1968)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1970)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1972)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1974)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1978)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1980)

Proceedings and transactions of the British Entomological and Natural History Society - British Entomological; Natural History Society. (British Entomological and Natural History Society, 1983)

Proceedings and transactions of the Royal Society of Canada. Délibérations et mémoires de la Société royale du Canada - Royal Society of Canada. (Société royale du Canada, 1899)

Proceedings and transactions of the Royal Society of Canada. Délibérations et mémoires de la Société royale du Canada - Royal Society of Canada. (Société royale du Canada, 1910)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1935)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1938)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1943)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1947)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1950)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1953)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1956)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1959)

Proceedings and transactions of the South London Entomological & Natural History Society - South London Entomological; Natural History Society (The Society, 1962)

Proceedings - Dorset Natural History and Archaeological Society - Dorset Natural History; Archaeological Society. (1877)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1852)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1854)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1901)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1908)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1913)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1841)

Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1886)

Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1887)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1965)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1866)

Proceedings of the Bournemouth Natural Science Society - Bournemouth Natural Science Society (1939)

Proceedings of the Bournemouth Natural Science Society - Bournemouth Natural Science Society (1967)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1879)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1949)

Proceedings of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1875)

Proceedings of the Chester Society of Natural Science - Chester Society of Natural Science. (1874)

Proceedings of the Cleveland Naturalists' Field Club - Cleveland Naturalists' Field Club. (1903)

Proceedings of the Cotteswold Naturalists' Field Club - Cotteswold Naturalists' Field Club. (1915)

Proceedings of the Dublin University Zoological and Botanical Association - Dublin University. Zoological; Botanical Association.

Proceedings of the Entomological Society of British Columbia - Entomological Society of British Columbia (Entomological Society of British Columbia, 1915)

Proceedings of the Entomological Society of British Columbia - Entomological Society of British Columbia (Entomological Society of British Columbia, 1947)

Proceedings of the Entomological Society of Ontario - Entomological Society of Ontario. (Entomological Society of Ontario, 1969)

Proceedings of the Entomological Society of Ontario - Entomological Society of Ontario. (Entomological Society of Ontario, 1979)

Proceedings of the Entomological Society of Philadelphia - American Entomological Society. ([Printed by the Society], 1861)

Proceedings of the Entomological Society of Philadelphia - American Entomological Society. ([Printed by the Society], 1864)

Proceedings of the Entomological Society of Philadelphia - American Entomological Society. ([Printed by the Society], 1865)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1890)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1912)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1913)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1915)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1923)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1926)