Standard industrial classification manual.
APA Citation
United States. Office of Management and Budget. Statistical Policy Division., United States. Technical Committee on Industrial Classification. (1972). Standard industrial classification manual. [Washington: For sale by the Supt. of Docs., U.S. Govt. Print. Off.].
MLA Citation
United States. Office of Management and Budget. Statistical Policy Division, and United States. Technical Committee on Industrial Classification. Standard Industrial Classification Manual. [Washington: For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1972.
Warning: These citations may not always be complete (especially for serials).