Draft environmental impact statement for the interagency bison management plan for the state of Montana and Yellowstone National Park - United States. National Park Service. (National Park Service, Denver Service Center, 1998)

Draft resource management plan and draft environmental impact statement (DEIS) for the Arizona Strip Field Office, Vermilion Cliffs National Monument, and BLM portion of Grand Canyon-Parashant National Monument and a draft general management plan and DEIS for the NPS portion of Grand Canyon-Parashant National Monument - United States. Bureau of Land Management. (U.S. Department of the Interior, Bureau of Land Management, Arizona Strip District, 2005)

Draft vegetation treatments using aminopyralid, fluroxypyr, and rimsulfuron on Bureau of Land Management lands in 17 western states programmatic environmental impact statement - United States. Bureau of Land Management. (U.S. Department of the Interior, Bureau of Land Management, 2015)

Early man in Britain and his place in the tertiary period - Dawkins, William Boyd, 1838 -1929 (Macmillan, 1880)

Ecological animal geography; an authorized, rewritten edition based on Tiergeographie auf ockologischer grundlage - Hesse, Richard, 1868 -1944 (J. Wiley & Sons, Inc, 1937)

Ecology and conservation of wolves in a changing world - Carbyn, Ludwig N. 1941 - (Canadian Circumpolar Institute, University of Alberta, 1995)

Ecology of the aspen parkland of western Canada in relation to land use - Bird, Ralph Durham, 1901 -1972 (Research Branch, Canada Dept. of Agriculture, 1961)

Ecology of the coyote in the Yellowstone - United States. National Park Service. (U.S. G.P.O, 1940)

Ecology of the muskrat (Ondatra zibethicus spatulatus) on the Peace-Athabasca Delta, Wood Buffalo National Park - Westworth, David Arthur. (University of Alberta, Dept. of Zoology, 1974)

Economic mammalogy - Henderson, Junius, 1865 -1937 (C.C. Thomas, 1932)