There is a detailed account of the 1972 Economic Census, with information on how it was conducted, tabulated, and published, along with copies of the questionnaires and codes:
- 1972 Economic Censuses: Procedural History.
Washington, D.C. : U.S. Dept. of Commerce, Bureau of the Census : 1976.
C 56.202:EC 7/2/972 - U.S. Government Documents
The Business Library has a complete set of the print publications from the 1972 Economic Census. Look on the pages for each part of the 1972 Economic Census for a list of print holdings.