Index, Standard occupational classification manual 1977 /
prepared by Executive Office of the President, Office of Management and Budget, Statistical Policy Division.

APA Citation

United States. Office of Management and Budget. Statistical Policy Division. (1978). Index, Standard occupational classification manual 1977. Washington: U.S. Govt. Print. Off..

MLA Citation

United States. Office of Management and Budget. Statistical Policy Division. Index, Standard Occupational Classification Manual 1977. Washington: U.S. Govt. Print. Off., 1978.

Warning: These citations may not always be complete (especially for serials).