APA (7th ed.) Citation

United States. Patent Office. (1869). Illustrations to accompany annual report of Commissioner of Patents for year 1869, volume 4. GPO.

Chicago Style (17th ed.) Citation

United States. Patent Office. Illustrations to Accompany Annual Report of Commissioner of Patents for Year 1869, Volume 4. [Washington]: GPO, 1869.

MLA (9th ed.) Citation

United States. Patent Office. Illustrations to Accompany Annual Report of Commissioner of Patents for Year 1869, Volume 4. GPO, 1869.

Warning: These citations may not always be 100% accurate.