How to do business with the GPO :
a guide for contractors.

APA Citation

United States. Government Printing Office. (1975). How to do business with the GPO: a guide for contractors. Revised ed. [Washington]: [United States Government Printing Office].

MLA Citation

United States. Government Printing Office. How to Do Business With the GPO: a Guide for Contractors. Revised ed. [Washington]: [United States Government Printing Office], 1975.

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