United States. Patent and Trademark Office. USPTO design search code manual. United States Patent and Trademark Office.
Chicago Style (17th ed.) CitationUnited States. Patent and Trademark Office. USPTO Design Search Code Manual. [Washington, District of Columbia?]: United States Patent and Trademark Office.
MLA (9th ed.) CitationUnited States. Patent and Trademark Office. USPTO Design Search Code Manual. United States Patent and Trademark Office.
Warning: These citations may not always be 100% accurate.