Elevation. Sundry points of pits

Chicago citation style
Proprietors of the Locks and Canals on Merrimack River. Elevation. Sundry points of pits. 1850-06-24. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/w6634974p. (Accessed July 21, 2018.)
APA citation style
Proprietors of the Locks and Canals on Merrimack River, (1850-06-24) Elevation. Sundry points of pits. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/w6634974p
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/w6634974p>.
Note: These citations are programmatically generated and may be incomplete.