1997 economic census. Mining. Subject series. Product summary
MLA
1997 Economic Census. [Washington, D.C.]: U.S. Department of Commerce, Economics and Statistics Administration, U.S. Census Bureau, 2001
APA, 7th edition
(2001). 1997 economic census. [Washington, D.C.]: U.S. Department of Commerce, Economics and Statistics Administration, U.S. Census Bureau
Chicago, 17th edition
1997 economic census. [Washington, D.C.]: U.S. Department of Commerce, Economics and Statistics Administration, U.S. Census Bureau, 2001