United States. Office of Management and Budget & U.S. Census Bureau. (1998). North American industry classification system, United States. U.S. Census Bureau.
Chicago Style (17th ed.) CitationUnited States. Office of Management and Budget and U.S. Census Bureau. North American Industry Classification System, United States. [Washington, D.C.]: U.S. Census Bureau, 1998.
MLA (9th ed.) CitationUnited States. Office of Management and Budget and U.S. Census Bureau. North American Industry Classification System, United States. U.S. Census Bureau, 1998.
Warning: These citations may not always be 100% accurate.