Author
U.S. Fish and Wildlife Service
2
Buotte, Polly C.,
1
Chase, Alston
1
Hornocker, Maurice G.,
1
Ruth, Toni K. 1963-
1
United States. Congress. House. Committee on Resources
1
United States. Congress. House. Committee on Resources,
1
United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Parks, Historic Preservation, and Recreation
1
Yellowstone National Park (Agency : U.S.),
1