Revised map of part of the Cahaba coal fields

Chicago citation style
Geological Survey of Alabama. Revised map of part of the Cahaba coal fields. 1905. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/4m90f622t. (Accessed July 15, 2018.)
APA citation style
Geological Survey of Alabama, (1905) Revised map of part of the Cahaba coal fields. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/4m90f622t
MLA citation style
Geological Survey of Alabama. Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/4m90f622t>.
Note: These citations are programmatically generated and may be incomplete.