Q & A about trademarks :
answers to questions frequently asked about trademarks /
U.S. Department of Commerce, Patent and Trademark Office.
APA Citation
United States Patent and Trademark Office. (1976). Q & A about trademarks: answers to questions frequently asked about trademarks. [Washington]: The Office.
MLA Citation
United States Patent and Trademark Office. Q & A About Trademarks: Answers to Questions Frequently Asked About Trademarks. [Washington]: The Office, 1976.
Warning: These citations may not always be complete (especially for serials).