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1988 IUCN red list of threatened animals (1988)

1990 IUCN red list of threatened animals (1990)

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2002 burrowing owl trend block survey and monitoring, Brooks area - Alberta. Fish; Wildlife Division. (Alberta Sustainable Resource Development, Fish & Wildlife Division, Resource Status and Assessment Branch, 2002)

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Abhandlungen der Mathematisch-Physikalischen Klasse der Königlich Bayerischen Akademie der Wissenschaften - Königlich Bayerische Akademie der Wissenschaften (1863)

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Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft - Senckenbergische Naturforschende Gesellschaft. (Waldemar Kramer [etc.], 1895)

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An account of the birds and mammals of the San Jacinto area of southern California with remarks upon the behavior of geographic races on the margins of their habitats - Grinnell, Joseph, 1877 -1939 (University of California Press, 1913)

An account of the mammals and birds of the lower Colorado Valley : with especial reference to the distributional problems presented - University of California, Berkeley. (University of California Press, 1914)

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The American journal of anatomy - Wistar Institute of Anatomy; Biology. ([s.n.], 1913)

The American journal of science (J.D. & E.S. Dana, 1888)

The American journal of science (J.D. & E.S. Dana, 1889)

The American journal of science (J.D. & E.S. Dana, 1891)

The American journal of science (J.D. & E.S. Dana, 1898)

The American journal of science (J.D. & E.S. Dana, 1910)

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The American journal of science and arts - Silliman, Benjamin, 1779 -1864 (S. Converse, 1836)

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The American journal of science and arts - Silliman, Benjamin, 1779 -1864 (S. Converse, 1853)

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Amphibian & reptile conservation (Amphibian & Reptile Conservation, 2020)

Amphibian & reptile conservation (Amphibian & Reptile Conservation, 2021)

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Amphibian & reptile conservation (Amphibian & Reptile Conservation, 2023)

Amphibian and reptile inventory on the Headwaters and Dillon Resources Areas in conjunction with Red Rock Lakes National Wildlife Refuge - U.S. Fish; Wildlife Service (Montana Natural Heritage Program, 1998)

Amphibian, reptile and northern bog lemming survey on the Rocky Mountain Front : 1996 - United States. Bureau of Land Management. (Montana Natural Heritage Program, 1997)

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