Patent Drawing for W. S. Burroughs's Calculating Machine

Chicago citation style
Department of the Interior. Patent Office. 1849-1925. Patent Drawing for W. S. Burroughs's Calculating Machine. 1888-08-21. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/7451872. (Accessed November 20, 2018.)
APA citation style
Department of the Interior. Patent Office. 1849-1925, (1888-08-21) Patent Drawing for W. S. Burroughs's Calculating Machine. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/7451872
MLA citation style
Department of the Interior. Patent Office. 1849-1925. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/7451872>.
Note: These citations are programmatically generated and may be incomplete.