Senator Henry M. Jackson (top, second from left) posing for a group portrait with the crew of USAF C-124, which air dropped a nine-ton tractor to South Pole Station during Jackson's visit to Antarctica, October 20, 1959

Chicago citation style
United States. Navy. Senator Henry M. Jackson (top, second from left) posing for a group portrait with the crew of USAF C-124, which air dropped a nine-ton tractor to South Pole Station during Jackson's visit to Antarctica, October 20, 1959. 1959. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/jackson/id/530. (Accessed July 16, 2018.)
APA citation style
United States. Navy, (1959) Senator Henry M. Jackson (top, second from left) posing for a group portrait with the crew of USAF C-124, which air dropped a nine-ton tractor to South Pole Station during Jackson's visit to Antarctica, October 20, 1959. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/jackson/id/530
MLA citation style
United States. Navy. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/jackson/id/530>.
Note: These citations are programmatically generated and may be incomplete.