Turbine. Wrought iron flume:

Chicago citation style
Proprietors of the Locks and Canals on Merrimack River. Turbine. Wrought iron flume. 1822-1952. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/qb98n5542. (Accessed July 22, 2018.)
APA citation style
Proprietors of the Locks and Canals on Merrimack River, (1822-1952) Turbine. Wrought iron flume. Retrieved from the Digital Public Library of America, http://ark.digitalcommonwealth.org/ark:/50959/qb98n5542
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/qb98n5542>.
Note: These citations are programmatically generated and may be incomplete.