With two satellite communications antennas in the foreground, two participants in the chemical warfare Exercise Purple Penny '89 kneel beside the command post set up for the exercise by the airlift control element of the 437th Military Airlift Wing

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994. With two satellite communications antennas in the foreground, two participants in the chemical warfare Exercise Purple Penny '89 kneel beside the command post set up for the exercise by the airlift control element of the 437th Military Airlift Wing. 1989-01-26. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6447929. (Accessed October 17, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994, (1989-01-26) With two satellite communications antennas in the foreground, two participants in the chemical warfare Exercise Purple Penny '89 kneel beside the command post set up for the exercise by the airlift control element of the 437th Military Airlift Wing. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6447929
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/6447929>.
Note: These citations are programmatically generated and may be incomplete.