A heavy tractor is offloaded from a flatbed trailer

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994. A heavy tractor is offloaded from a flatbed trailer. 1978-10-01. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6399152. (Accessed December 13, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994, (1978-10-01) A heavy tractor is offloaded from a flatbed trailer. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6399152
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/6399152>.
Note: These citations are programmatically generated and may be incomplete.