Map of Washington Co., Pennsylvania: from actual surveys

Chicago citation style
Beers, S. N. Map of Washington Co., Pennsylvania: from actual surveys. 1861. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/4m90fd03v. (Accessed July 21, 2018.)
APA citation style
Beers, S. N, (1861) Map of Washington Co., Pennsylvania: from actual surveys. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/4m90fd03v
MLA citation style
Beers, S. N. Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/4m90fd03v>.
Note: These citations are programmatically generated and may be incomplete.