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).