Umbsen's map of the City and County of San Francisco, California

Chicago citation style
G.H. Umbsen & Co. Umbsen's map of the City and County of San Francisco, California. 1898. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/4m90fc391. (Accessed June 18, 2018.)
APA citation style
G.H. Umbsen & Co, (1898) Umbsen's map of the City and County of San Francisco, California. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/4m90fc391
MLA citation style
G.H. Umbsen & Co. Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/4m90fc391>.
Note: These citations are programmatically generated and may be incomplete.