Author
SpringerLink (Online service)
338 results
ProQuest (Firm)
40 results
NetLibrary, Inc
26 results
International Union for Conservation of Nature and Natural Resources
19 results
U.S. Fish and Wildlife Service
17 results
United States. National Park Service
16 results
United States. Congress. House. Committee on Resources
15 results
EBSCOhost
12 results
Leopold, Aldo, 1886-1948
10 results
ebrary, Inc
10 results
Callicott, J. Baird
7 results
IUCN Commission on National Parks and Protected Areas
7 results
JSTOR (Organization)
7 results
Frome, Michael
6 results
McNeely, Jeffrey A.
6 results
Taylor & Francis
6 results
Texas. Parks and Wildlife Department
6 results
U.S. Fish and Wildlife Service. Division of Management Authority
6 results
Adams, W. M. (William Mark), 1955-
5 results
Nash, Roderick
5 results
Spellerberg, Ian F.
5 results
Texas. Wildlife Division
5 results
United Nations Environment Programme
5 results
United States. Forest Service
5 results
Wilson, Edward O.
5 results
Florentine Films
4 results
Frye, Roy G., 1947-
4 results
Geological Survey (U.S.)
4 results
Goldsmith, F. B. (Frank Barrie)
4 results
Junior Ranger Program (United States. National Park Service)
4 results
Kanopy (Firm)
4 results
National Audubon Society
4 results
Nature Conservancy (U.S.)
4 results
Shogren, Jason F.
4 results
Soulé, Michael E.
4 results
Struthers, Kimberly
4 results
U.S. Fish and Wildlife Service. Region 1
4 results
U.S. Fish and Wildlife Service. Region 6
4 results
U.S. Fish and Wildlife Service. Region 7
4 results
United States. Congress. House. Committee on Merchant Marine and Fisheries. Subcommittee on Environment and Natural Resources
4 results
United States. General Accounting Office
4 results
World Congress on National Parks and Protected Areas
4 results
Botkin, Daniel B.
3 results
Buckley, Ralf
3 results
Burns, Ken, 1953-
3 results
Cambridge University Press
3 results
Canadian Parks and Wilderness Society
3 results
Conservation Foundation
3 results
Conservation International
3 results
Coyote, Peter
3 results
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