Wheel pits

Chicago citation style
Proprietors of the Locks and Canals on Merrimack River. Wheel pits. 1856. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/w6634c79g. (Accessed July 17, 2018.)
APA citation style
Proprietors of the Locks and Canals on Merrimack River, (1856) Wheel pits. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/w6634c79g
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/w6634c79g>.
Note: These citations are programmatically generated and may be incomplete.