Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn - Zoologisches Forschungsinstitut und Museum Alexander Koenig. (Das Forschungsinstitut, 2004)

Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn - Zoologisches Forschungsinstitut und Museum Alexander Koenig. (Das Forschungsinstitut, 2004)

Bonner zoologische Monographien (Zoologisches Forschungsinstitut und Museum Alexander Koenig, 2009)

Bonner zoologische Monographien (Zoologisches Forschungsinstitut und Museum Alexander Koenig, 2009)

Bonner zoologische Monographien (Zoologisches Forschungsinstitut und Museum Alexander Koenig, 2009)

Brigham Young University science bulletin Biological series - Brigham Young University. (Brigham Young University, 1965)

Bulletin - United States National Museum (G.P.O, 1942)

California mammals - Stephens, Frank, 1849 -1937 (West Coast Pub. Co, 1906)

A check list of mammals of the North American continent, the West Indies and the neighboring seas - Elliot, Daniel Giraud, 1835 -1915 (1905)

Fieldiana Life and earth sciences - Field Museum of Natural History. (Field Museum of Natural History, 2011)

Fieldiana Life and earth sciences - Field Museum of Natural History. (Field Museum of Natural History, 2011)

Fieldiana Life and earth sciences - Field Museum of Natural History. (Field Museum of Natural History, 2011)

Fieldiana Life and earth sciences - Field Museum of Natural History. (Field Museum of Natural History, 2011)

Fieldiana Life and earth sciences - Field Museum of Natural History. (Field Museum of Natural History, 2011)

Fieldiana Life and earth sciences - Field Museum of Natural History. (Field Museum of Natural History, 2011)

Fieldiana Life and earth sciences - Field Museum of Natural History. (Field Museum of Natural History, 2012)

Fieldiana Life and earth sciences - Field Museum of Natural History. (Field Museum of Natural History, 2012)

Fieldiana Life and earth sciences - Field Museum of Natural History. (Field Museum of Natural History, 2012)

The Great Basin naturalist - Brigham Young University. (M.L. Bean Life Science Museum, Brigham Young University, 1998)

Nature lovers library (University Society Inc, 1923)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1895)

North American fauna - U.S. Fish; Wildlife Service (Fish and Wildlife Service; for sale by the Supt. of Docs., U. S. Govt. Print. Off, 1931)