United States. Congress. Senate. Committee on Energy and Natural Resources, author.
[Washington, D.C.] : [U.S. Government Publishing Office], [2017]
2017
United States. Congress. Senate. Committee on Energy and Natural Resources, author.
[Washington, D.C.] : [U.S. Government Publishing Office], [2016]
2016
Cook, Philip S., 1960- author.
Fort Collins, Colorado : U.S. Department of the Interior, National Park Service, Natural Resource Stewardship and Science, 2012.
2012