Não informado. (1872). Official Gazette of the United States Patent Office. U.S. Patent Office, Department of Congress.
Citação do estilo Chicago (17ª ed.)Não informado. Official Gazette of the United States Patent Office. Washington: U.S. Patent Office, Department of Congress, 1872.
Citação MLA (8ª ed.)Não informado. Official Gazette of the United States Patent Office. U.S. Patent Office, Department of Congress, 1872.
警告：这些引文格式不一定是100％准确.