Map of British Columbia to the 56th parallel, north latitude

Chicago citation style
British Columbia, Department of Lands and Works. Map of British Columbia to the 56th parallel, north latitude. 1871. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/4m90ff81f. (Accessed June 21, 2018.)
APA citation style
British Columbia, Department of Lands and Works, (1871) Map of British Columbia to the 56th parallel, north latitude. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/4m90ff81f
MLA citation style
British Columbia, Department of Lands and Works. Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/4m90ff81f>.
Note: These citations are programmatically generated and may be incomplete.