Hopkinton Dam on the Contoocook River in West Hopkinton, N.H.

Chicago citation style
Department of Defense. Department of the Army. U.S. Army Corps of Engineers. 6/16/1979. Hopkinton Dam on the Contoocook River in West Hopkinton, N.H.. 1987. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/7347126. (Accessed September 26, 2018.)
APA citation style
Department of Defense. Department of the Army. U.S. Army Corps of Engineers. 6/16/1979, (1987) Hopkinton Dam on the Contoocook River in West Hopkinton, N.H.. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/7347126
MLA citation style
Department of Defense. Department of the Army. U.S. Army Corps of Engineers. 6/16/1979. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/7347126>.
Note: These citations are programmatically generated and may be incomplete.