United States. Bureau of the Census. (1980). 1977 census of mineral industries: Industry series, bituminous coal and lignite mining. 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, Bituminous Coal and Lignite Mining. [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, Bituminous Coal and Lignite Mining. U.S. Dept. of Commerce, Bureau of the Census, 1980.
Warning: These citations may not always be 100% accurate.