Turbines #9 and #10. Wheel pits

Chicago citation style
Proprietors of the Locks and Canals on Merrimack River. Turbines #9 and #10. Wheel pits. 1857-02-09. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/ws859g29d. (Accessed July 18, 2018.)
APA citation style
Proprietors of the Locks and Canals on Merrimack River, (1857-02-09) Turbines #9 and #10. Wheel pits. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/ws859g29d
MLA citation style
Proprietors of the Locks and Canals on Merrimack River. Retrieved from the Digital Public Library of America <http://ark.digitalcommonwealth.org/ark:/50959/ws859g29d>.
Note: These citations are programmatically generated and may be incomplete.