The large harbor tugs NEGWAGON (YTB 834) and METACOM (YTB 829), background, assist in mooring the nuclear-powered attack submarine ex-USS NAUTILUS (SSN 571) upon its arrival at pier No. 33. Also visible in the background is the large harbor tug CAMPTI (YTB 816). The submarine will remain at the Submarine Force Library and Museum as a memorial

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994. The large harbor tugs NEGWAGON (YTB 834) and METACOM (YTB 829), background, assist in mooring the nuclear-powered attack submarine ex-USS NAUTILUS (SSN 571) upon its arrival at pier No. 33. Also visible in the background is the large harbor tug CAMPTI (YTB 816). The submarine will remain at the Submarine Force Library and Museum as a memorial. 1985-07-06. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6395391. (Accessed October 21, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994, (1985-07-06) The large harbor tugs NEGWAGON (YTB 834) and METACOM (YTB 829), background, assist in mooring the nuclear-powered attack submarine ex-USS NAUTILUS (SSN 571) upon its arrival at pier No. 33. Also visible in the background is the large harbor tug CAMPTI (YTB 816). The submarine will remain at the Submarine Force Library and Museum as a memorial. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6395391
MLA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/6395391>.
Note: These citations are programmatically generated and may be incomplete.