Massachusetts, Boston sheet

Chicago citation style
Geological Survey (U.S.). Massachusetts, Boston sheet. 1886. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/c534g437g. (Accessed July 21, 2018.)
APA citation style
Geological Survey (U.S.), (1886) Massachusetts, Boston sheet. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/c534g437g
MLA citation style
Geological Survey (U.S.). Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/c534g437g>.
Note: These citations are programmatically generated and may be incomplete.