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[Dissertationes Academiae Upsaliensis] - Thunberg, Carl Peter, 1743 -1828 (1782)

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Distribution and origin of life in America - Scharff, R. F. (Robert Francis), 1858 -1934 (Constable & Co, 1911)

Distribution and origin of life in America - Scharff, R. F. (Robert Francis), 1858 -1934 (Constable, 1911)

Distribution and origin of life in America - Scharff, R. F. (Robert Francis), 1858 -1934 (Macmillan, 1912)

Distribution méthodique de la famille des Graminées - Kunth, Karl Sigismund, 1788 -1850 (Librarie-Gide, 1835)

The distribution of vegetation in the United States, as related to climatic conditions - Livingston, Burton E. (Burton Edward), 1875 -1948 (Carnegie institution of Washington, 1921)

The distribution of vegetation in the United States, as related to climatic conditions - Shreve, Forrest, 1878 -1950 (Carnegie institution of Washington, 1921)

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Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz - Rabenhorst, Ludwig, 1806 -1881 (E. Kummer, 1901)

Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz - Rabenhorst, Ludwig, 1806 -1881 (E. Kummer, 1910)

Draft weed management plan - Montana. Department of Fish, Wildlife,; Parks. Region 5 (The Region, 1994)

Dwellers of the sea and shore - Crowder, William, 1882 - (The Macmillan Company, 1935)

E. Rowland and John Torrey correspondence, 1839 - Rowland, E. (Edward), active 1839 - (1939)

Étude anatomique de quelques Graminées : et en particulier des Agropyrum de l'Hérault - Duval-Jouve, J. (Joseph), 1810 -1883 (J.-B. Baillière et Fils, 1870)

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The ecologic anatomy of some plants of a prairie province in central Iowa - Hayden, Ada, 1884 -1950 (1919)

An ecological characterization of Coastal Maine (north and east of Cape Elizabeth) - U.S. Fish; Wildlife Service (Department of the Interior, U.S. Fish and Wildlife Service, Northeast Region, 1980)

An Ecological land classification framework for the United States States - United States. Forest Service. (U.S. Dept. of Agriculture, Forest Service, 1984)

An ecological study of prairie and forest invertebrates - Adams, Charles C. (Charles Christopher), 1873 -1955 (1915)

An ecological study of prairie and forest invertebrates - Adams, Charles C. (Charles Christopher), 1873 -1955 (Illinois State Laboratory of Natural History, 1915)

Ecological study of the Amoco Cadiz oil spill : report of the NOAA-CNEXO Joint Scientific Commission - NOAA-CNEXO Joint Scientific Commission. (U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, 1982)

An ecologically annotated checklist of the vascular flora at the Chesapeake Bay Center for Field Biology, with keys - Smithsonian Institution. Office of Ecology (Smithsonian Institution, 1968)

Ecologically significant wetlands in the Missouri headwaters : Jefferson, lower Madison, lower Gallatin, and upper Red Rock River watersheds - Montana Natural Heritage Program. (Montana Natural Heritage Program, 2004)

Ecology and behavior of the Manatee (Trichechus manatus) in Florida - American Society of Mammalogists. (American Society of Mammalogists, 1979)

Ecology and bioenergetics of the long-billed marsh wren in Georgia salt marshes (Telmatodytes balustris griseus [Brewster]) - Nuttall Ornithological Club. (Nuttall Ornithological Club, 1965)

Ecology notes - Dana, Miss (1900)

Ecology of Buzzards Bay : an estuarine profile - United States. National Biological Service. (U.S. Dept. of the Interior, National Biological Service, 1996)

The ecology of delta marshes of coastal Louisiana : a community profile - Gosselink, James G. (National Coastal Ecosystems Team, Division of Biological Services, Research Development, Fish and Wildlife Service, U.S. Dept. of the Interior, 1984)

The ecology of the ants of the Welaka Reserve, Florida (Hymenoptera: Formicidae) - Van Pelt, Arnold (1950)

The ecology of the Apalachicola Bay system : an estuarine profile - U.S. Fish; Wildlife Service (The Service, 1984)