United States. Bureau of the Census. (1980). 1977 census of mineral industries: Industry series, copper, lead, zinc, gold, and silver ores. U.S. Dept. of Commerce, Bureau of the Census.
Chicago Style (17th ed.) CitationUnited States. Bureau of the Census. 1977 Census of Mineral Industries: Industry Series, Copper, Lead, Zinc, Gold, and Silver Ores. [Washington, D.C.?]: U.S. Dept. of Commerce, Bureau of the Census, 1980.
MLA (9th ed.) CitationUnited States. Bureau of the Census. 1977 Census of Mineral Industries: Industry Series, Copper, Lead, Zinc, Gold, and Silver Ores. U.S. Dept. of Commerce, Bureau of the Census, 1980.
Warning: These citations may not always be 100% accurate.