United States. Patent Office. (1900). Official gazette of U.S. Patent Office: Supplement to Vol. 93, containing classification of subjects of invention, revised and published between July 1, and Dec. 31, 1900. GPO.
Chicago Style (17th ed.) CitationUnited States. Patent Office. Official Gazette of U.S. Patent Office: Supplement to Vol. 93, Containing Classification of Subjects of Invention, Revised and Published Between July 1, and Dec. 31, 1900. [Washington]: GPO, 1900.
MLA (9th ed.) CitationUnited States. Patent Office. Official Gazette of U.S. Patent Office: Supplement to Vol. 93, Containing Classification of Subjects of Invention, Revised and Published Between July 1, and Dec. 31, 1900. GPO, 1900.
Warning: These citations may not always be 100% accurate.