Map of West Virginia showing coal, oil, gas and limestone areas

Chicago citation style
West Virginia Geological and Economic Survey. Map of West Virginia showing coal, oil, gas and limestone areas. 1908. Retrieved from the Digital Public Library of America, https://ark.digitalcommonwealth.org/ark:/50959/4m90f606f. (Accessed September 24, 2018.)
APA citation style
West Virginia Geological and Economic Survey, (1908) Map of West Virginia showing coal, oil, gas and limestone areas. Retrieved from the Digital Public Library of America, https://ark.digitalcommonwealth.org/ark:/50959/4m90f606f
MLA citation style
West Virginia Geological and Economic Survey. Retrieved from the Digital Public Library of America <https://ark.digitalcommonwealth.org/ark:/50959/4m90f606f>.
Note: These citations are programmatically generated and may be incomplete.