United States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on Mines and Mining & ProQuest (Firm). (1961). Stabilizing the Mining of Lead and Zinc by Small Domestic Producers: Hearings before the United States House Committee on Interior and Insular Affairs, Subcommittee on Mines and Mining, Eighty-Seventh Congress, first session, on Mar. 9, 10, June 16, July 25, 1961. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on Mines and Mining and ProQuest (Firm). Stabilizing the Mining of Lead and Zinc by Small Domestic Producers: Hearings Before the United States House Committee on Interior and Insular Affairs, Subcommittee on Mines and Mining, Eighty-Seventh Congress, First Session, on Mar. 9, 10, June 16, July 25, 1961. Washington: U.S. G.P.O., 1961.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Interior and Insular Affairs. Subcommittee on Mines and Mining and ProQuest (Firm). Stabilizing the Mining of Lead and Zinc by Small Domestic Producers: Hearings Before the United States House Committee on Interior and Insular Affairs, Subcommittee on Mines and Mining, Eighty-Seventh Congress, First Session, on Mar. 9, 10, June 16, July 25, 1961. U.S. G.P.O., 1961.