The weed flora of Iowa ... - Pammel, L. H. (Louis Hermann), 1862 -1931 (Iowa Geological Survey, 1913)

The weed flora of Iowa - Pammel, L. H. (Louis Hermann), 1862 -1931 (Iowa Geological Survey, 1913)

Weeds and weed seeds : illustrated and described - Canada. Department of Agriculture. (Dept. of Agriculture, 1922)

Weeds and weed seeds : illustrated and described - Canada. Department of Agriculture. Seed Branch. (Dept. of Agriculture, Seed Branch, 1914)

Weeds and weed seeds : illustrated and described : with notes on seed cleaning - Canada. Department of Agriculture. Seed Branch. (Dept. of Agriculture, Seed Branch, 1935)

Weeds of Alberta - Alberta. Dept. of Agriculture. Seed; Weed Branch. ([Dept. of Agriculture], 1912)

The weeds of New South Wales, pt. I - Maiden, J. H. (Joseph Henry), 1859 -1925 (W.A. Gullick, Gov't. printer, 1920)

Weeds of southwestern Wisconsin and southeastern Minnesota - Pammel, L. H. (Louis Hermann), 1862 -1931 (Pioneer Press Co, 1887)

Weeds of the farm and garden - Pammel, L. H. (Louis Hermann), 1862 -1931 (Orange Judd company; [etc., etc.], 1911)

Weeds of the farm and garden - Pammel, L. H. (Louis Hermann), 1862 -1931 (Orange Judd, 1912)

Weeds of the prairies - Alberta. Alberta Agriculture, Food,; Rural Development. (Alberta Agriculture, Food and Rural Development, Publishing Branch, 2000)

Weeds used in medicine - Henkel, Alice, 1869 -1916 (U.S. G.P.O, 1917)

The West-American scientist - Orcutt, Charles Russell, 1864 -1929 (C.R. Orcutt, 1888)

The West-American scientist - Orcutt, Charles Russell, 1864 -1929 (C.R. Orcutt, 1900)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1961)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1962)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1963)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1998)

Whitefly of the world : a systematic catalogue of the Aleyrodidae (Homoptera) with host plant and natural enemy data - British Museum (Natural History) (British Museum (Natural History) and Wiley, 1978)

Wild medicinal plants of the United States - United States. Bureau of Plant Industry. (G.P.O, 1906)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1942)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1945)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1947)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1949)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1951)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1953)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1955)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1958)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1961)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1964)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1965)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1966)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1968)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1978)

Die wirtswechselnden rostpilze; versuch einer gesamtdarstellung ihrer biologischen verhältnisse - Klebahn, H. (Heinrich) (Gebrüder Borntraeger, 1904)

Die wirtswechselnden Rostpilze : Versuch einer Gesamtdarstellung ihrer biologischen Verhältnisse - Klebahn, H. (Heinrich) (Gebrüder Borntraeger, 1904)

Wissenchaftliche ergebnisse der Schwedischen sèudpolar-expedition 1901-1903 - Nordenskjöld, Otto, 1869 -1928 (Lithographisches institut des Generalstabs, 1908)

Wissenschaftliche Ergebnisse der Deutschen Tiefsee-Expedition auf dem Dampfer "Valdivia" 1898-1899 - Chun, Carl, 1852 -1914 (G. Fischer, 1908)

Wissenschaftliche Ergebnisse der Schwedischen Südpolar-Expedition, 1901-1903 - Nordenskjöld, Otto, 1869 -1928 (Lithographisches Institut des Generalstabs, 1905)

Wissenschaftliche Meeresuntersuchungen. Abt. Kiel - Biologische Anstalt Helgoland. (Lipsius und Tischer, 1908)

Wochenschrift des Vereines zur Beförderung des Gartenbaues in den Königlich Preussischen Staaten für Gärtnerei und Pflanzenkunde - Koch, Karl, 1809 -1879 (Wiegandt & Hempel [etc.], 1868)

Wochenschrift des Vereines zur Beförderung des Gartenbaues in den Königlich Preussischen Staaten für Gärtnerei und Pflanzenkunde - Koch, Karl, 1809 -1879 (Wiegandt & Hempel [etc.], 1869)

Worldwide literature of the Lygus complex (Hemiptera, Miridae), 1900-1980 - Ertle, L. R. (U.S. Dept. of Agriculture, Agricultural Research Service, 1984)

Wörterbuch der biologie. Von dr. Heinrich Schmidt - Schmidt, Heinrich, 1874 -1935 (A. Kröner, 1912)

Yearbook of agriculture - United States. Department of Agriculture. (U.S. Govt. Print. Off, 1896)

A Yosemite flora; a descriptive account of the ferns and flowering plants, including the trees, of the Yosemite National Park; with simple keys for their identification ... - Hall, Carlotta Case. (Elder, 1912)

yun nan zhi wu zhi - Wu, Zhengyi. (ke xue chu ban she, 2004)

Yunnan zhong zi zhi wu ming lu - Zhongguo ke xue yuan. Kunming zhi wu yan jiu suo. (Yunnan ren min chu ban she, 1984)

zai pei zhi wu ming lu - Zhongguo ke xue yuan. Zhi wu yan jiu suo (zhong guo ke xue yuan)

Zeitschrift der Deutschen Geologischen Gesellschaft. A, Abhandlungen - Deutsche Geologische Gesellschaft. (J.G. Cotta'sche Buchhandlung Nachfolger, 1915)

Zeitschrift für die gesammten Naturwissenschaft - Naturwissenschaftlicher Verein für Sachsen und Thüringen in Halle. (Wiegandt, Hempel & Parey, 1854)

Zeitschrift für die gesammten Naturwissenschaft - Naturwissenschaftlicher Verein für Sachsen und Thüringen in Halle. (Wiegandt, Hempel & Parey, 1870)

Zeitschrift für induktive Abstammungs- und Vererbungslehre (Springer-Verlag, 1908)

Zeitschrift für Naturwissenschaften - Naturwissenschaftlicher Verein für Sachsen und Thüringen in Halle. (Verlag Naturwissenschaftlichen Vereins für Sachsen und Thüringen, 1904)

Zeitschrift für Pflanzenkrankheiten (E. Ulmer, 1891)

Zeitschrift für Pflanzenkrankheiten (E. Ulmer, 1919)

Zeitschrift für Säugetierkunde : im Auftrage der Deutschen Gesellschaft für Säugetierkunde e.V - Deutsche Gesellschaft für Säugetierkunde (Die Gesellschaft, 1956)

Zeitschrift für wissenschaftliche Insektenbiologie (s.n, 1908)

zhi wu tu shuo - Zhou, Jianren. (shang wu yin shu guan, 1939)

zhong guo sha mo zhi wu zhi - Liu, Yingxin (ke xue chu ban she, 1992)

zhong zi zhi wu fen lei xue jiang yi - Hu. Xianxiao (zhong hua shu ju chu ban, 1954)

Ziva : casopis pro biologickou práci - Akademie ved Ceské republiky (Academia, 1859)

Zoe:a biological journal (Zoe Publishing Co, 1892)

Les zoocécidies des plantes d'Europe et du bassin de la Méditerranée. Description des galles - Houard, Clodomir, 1873 - (A. Hermann, 1909)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1921)

Zur Flora der Umgebung Lembergs - Tomaschek, Anton, 1826 -1891 (s.n, 1866)