Plantsman - New Hampshire Plant Growers' Association. (1999)

Populäre biologische Vorträge - Molisch, Hans, 1856 -1937 (G. Fischer, 1922)

Population dynamics of microorganisms associated with caladium seedpieces - Ferriss, Richard S., 1948 - (1979)

Practical dairy bacteriology, prepared for the use of students, dairymen, and all interested in the problems of the relation of milk to public health - Conn, H. W. (Herbert William), 1859 -1917 (O. Judd company: [etc., etc.], 1907)

Praktikum der Fischkrankheiten - Plehn, Marianne, 1863 -1946 (Schweizerbart (E. Nägele) g.m.b.h, 1924)

Preservation of damp grain with propionic acid - Ulrich, Maria Danuta. (1974)

Principles of animal ecology - Allee, W. C. (Warder Clyde), 1885 -1955 (Saunders Co, 1949)

The principles of bacteriology - Abbott, A. C. (Alexander Crever), 1860 -1935 (Lewis, 1905)

The principles of bacteriology; a practical manual for students and physicians - Abbott, A. C. (Alexander Crever), 1860 -1935 (Lea & Febiger, 1915)

The principles of bacteriology: a practical manual for students and physicians - Abbott, A. C. (Alexander Crever), 1860 -1935 (Lea brothers and company, 1905)

The principles of bacteriology: a practical manual for students and physicians - Abbott, A. C. (Alexander Crever), 1860 -1935 (Lea & Febiger, 1915)

The principles of bacteriology: a practical manual for students and physicians - Abbott, A. C. (Alexander Crever), 1860 -1935 (Lea & Febiger, 1909)

The principles of bacteriology; a practical manual for students and physicians - Abbott, A. C. (Alexander Crever), 1860 -1935 (Lea & Febiger, 1921)

Principles of botany - Bergen, Joseph Y. (Joseph Young), 1851 -1917 (Ginn, 1906)

Principles of botany - Bergen, Joseph Y. (Joseph Young), 1851 -1917 (Ginn & company, 1906)

Principles of botany - Bergen, Joseph Y. (Joseph Young), 1851 -1917 (Ginn & Company, 1906)

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

Principles of microbiology; a treatise on Bacteria, Fungi and Protozoa pathogenic for domesticated animals - Moore, Veranus A. (Veranus Alva), 1859 -1931 (Carpenter & company, 1912)

Principles of plant physiology - Raber, Oran, 1893 -1940 (The Macmillan Co, 1938)

The principles of soil management - Lyon, T. L. (Thomas Lyttleton), 1869 -1938 (Macmillan, 1910)

The principles of soil management - Lyon, T. L. (Thomas Lyttleton), 1869 -1938 (The Macmillan company, 1909)

Principles of soil microbiology - Waksman, Selman A. (Selman Abraham), 1888 -1973 (Williams & Wilkins, 1927)

Proceedings : 20th Southern Forest Tree Improvement Conference, June 26-30, 1989 Charleston, South Carolina - Southern Forest Tree Improvement Committee. (Southern Forest Experiment Station, USDA Forest Service, 1989)

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, 1906)

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, 1919)

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, 1922)

Proceedings - Oparin, Aleksandr Ivanovich, 1894 -1980 (Pergamon Press, 1959)

Proceedings : Intermountain Forest Nursery Association : August 14-18, 1989, Bismarck, North Dakota - Landis, Thomas D. (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1989)

Proceedings of the American Society of Agronomy - American Society of Agronomy. (The Society, 1913)

Proceedings of the Bristol Naturalists' Society - Bristol Naturalists' Society (Bristol, England) (Bristol Naturalists' Society, 1895)

Proceedings of the Conference on Nursery Production of Fruit Plants through Tissue Culture : Applications and Feasibility, April 21-22, 1980, Beltsville, Maryland - United States. Science; Education Administration. Agricultural Research. (Agricultural Research (Northeastern Region), 1980)

Proceedings of the Entomological Society of British Columbia - Entomological Society of British Columbia (Entomological Society of British Columbia, 1938)

Proceedings of the Entomological Society of Ontario - Entomological Society of Ontario. (Entomological Society of Ontario, 1956)

Proceedings of the Entomological Society of Ontario - Entomological Society of Ontario. (Entomological Society of Ontario, 1963)

Proceedings of the Entomological Society of Ontario - Entomological Society of Ontario. (Entomological Society of Ontario, 1974)

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

Proceedings of the Entomological Society of Ontario - Entomological Society of Ontario. (Entomological Society of Ontario, 1987)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1928)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1906)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1904)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1919)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1905)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1918)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1920)

Proceedings of the Linnean Society of London - Linnean Society of London. (Published for the Linnean Society of London by Academic Press [etc.], 1915)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1922)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1923)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1924)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1950)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1971)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1976)

Proceedings of the National Shellfisheries Association - National Shellfisheries Association. (Published for the National Shellfisheries Association by MPG Communications, 1959)

Proceedings of the National Shellfisheries Association - National Shellfisheries Association. (Published for the National Shellfisheries Association by MPG Communications, 1967)

Proceedings of the National Shellfisheries Association - National Shellfisheries Association. (Published for the National Shellfisheries Association by MPG Communications, 1972)

Proceedings of the National Shellfisheries Association - National Shellfisheries Association. (Published for the National Shellfisheries Association by MPG Communications, 1974)

Proceedings of the National Shellfisheries Association - National Shellfisheries Association. (Published for the National Shellfisheries Association by MPG Communications, 1978)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1984)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1987)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1988)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 2001)

Proceedings of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1914)

Proceedings of the Royal Society of London. Series B, Containing papers of a Biological character - Royal Society (Great Britain) (Printed for the Royal Society and sold by Harrison & Sons, 1909)