"Looking downstream into Black Canyon from point on Nevada side above outlet portals of diversion tunnels."

Chicago citation style
Department of the Interior. Bureau of Reclamation. Engineering and Research Center. 5/18/1981-3/4/1988. "Looking downstream into Black Canyon from point on Nevada side above outlet portals of diversion tunnels.". 1932-10-26. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/293754. (Accessed September 23, 2018.)
APA citation style
Department of the Interior. Bureau of Reclamation. Engineering and Research Center. 5/18/1981-3/4/1988, (1932-10-26) "Looking downstream into Black Canyon from point on Nevada side above outlet portals of diversion tunnels.". Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/293754
MLA citation style
Department of the Interior. Bureau of Reclamation. Engineering and Research Center. 5/18/1981-3/4/1988. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/293754>.
Note: These citations are programmatically generated and may be incomplete.