Acting as Deputy Assistant Secretary of the Air Force for Environmental Safety and Occupational Health, Terry Yonkers (left) heads up a team of US Air Force volunteers from the Pentagon in support of Earth Day April 21, 2001. Yonkers and his team joined local citizens at the 4 Mile Run Park in Alexandria, Virginia, to gather a mountain of refuse

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994. Acting as Deputy Assistant Secretary of the Air Force for Environmental Safety and Occupational Health, Terry Yonkers (left) heads up a team of US Air Force volunteers from the Pentagon in support of Earth Day April 21, 2001. Yonkers and his team joined local citizens at the 4 Mile Run Park in Alexandria, Virginia, to gather a mountain of refuse. 2001-04-21. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6521876. (Accessed October 18, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994, (2001-04-21) Acting as Deputy Assistant Secretary of the Air Force for Environmental Safety and Occupational Health, Terry Yonkers (left) heads up a team of US Air Force volunteers from the Pentagon in support of Earth Day April 21, 2001. Yonkers and his team joined local citizens at the 4 Mile Run Park in Alexandria, Virginia, to gather a mountain of refuse. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6521876
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/6521876>.
Note: These citations are programmatically generated and may be incomplete.