Nanik Trihastuti
Unknown Author
United States. Bureau of Land Management. Miles City District
United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on Mining and Natural Resources.
United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Natural Resources Development and Production.
Marcelo Gomes de Souza
Barry Barton
United States. Congress. Senate. Committee on Public Lands
Institute on Mining Agreements (2nd 1981 Santa Fe, N.M.)
Rocky Mountain Mineral Law Foundation
United States. Congress. House. Committee on Interior and Insular Affairs.
United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on Mining, Forest Management, and Bonneville Power Administration.
Olen Paul Matthews