Author
United States. National Park Service
Bieberstein, Alexandra von,
2
Brown, Margie Coffin, 1963-
2
Hanna, Jennifer,
2
Olmsted Center for Landscape Preservation (U.S.),
2
United States. Forest Service
2
Armstrong, Leslie, 1956-
1
Elliott, Charles Newton, 1906-
1
Elliott, Hugh F. I.
1
Frank and Virginia Williams Collection of Lincolniana (Mississippi State University. Libraries)
1
Gardner, Donald E.
1
Greater Yellowstone Coordinating Committee
1
Guadalupe Mountains National Park (Agency : U.S.)
1
Henry, Mark, 1954-
1
International Union for Conservation of Nature and Natural Resources
1
Kempthorne, Dirk, 1951-
1
Livingston, Douglas
1
Marion, Jeffrey L.
1
Montana
1
National Parks Centennial Commission
1
Peterson, David L. 1954-
1
Ryan, Jan S.
1
Santa Fe National Forest (Agency : U.S.),
1
Silsbee, David G.
1
U.S. Fish and Wildlife Service
1
United States. Animal and Plant Health Inspection Service
1
United States. Bureau of Land Management
1
Weber, Walter A. 1906-1979,
1
World Conference on National Parks
1
World Conference on National Parks Yellowstone and Grand Teton National Parks)
1