APA aipamena

United States. Patent and Trademark Office. (1977). Trademark rules of practice of the Patent and Trademark Office with forms and statutes, 1976 (9th ed.). U.S. Dept. of Commerce, Patent and Trade Office : For sale by the Supt. of Docs., U.S. G.P.O..

Chicago Style aipamena

United States. Patent and Trademark Office. Trademark Rules of Practice of the Patent and Trademark Office with Forms and Statutes, 1976. 9th ed. Washington, D.C.: U.S. Dept. of Commerce, Patent and Trade Office : For sale by the Supt. of Docs., U.S. G.P.O., 1977.

MLA aipamena

United States. Patent and Trademark Office. Trademark Rules of Practice of the Patent and Trademark Office with Forms and Statutes, 1976. 9th ed. U.S. Dept. of Commerce, Patent and Trade Office : For sale by the Supt. of Docs., U.S. G.P.O., 1977.