Sergeant (SGT) Ken Wilson of the 21st Civil Engineering Squadron drills holes in a frozen concrete slab as STAFF Sergeant (SSGT) Tim Johnson of the 21st Equipment Maintenance Squadron directs a heating duct to thaw the ground. They are setting up a mobile aerial arresting system (MAAS) on the runway during Exercise COBBLER FREEZE'87, a cold-weather force projection exercise conducted by the Alaskan Air Command

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. Sergeant (SGT) Ken Wilson of the 21st Civil Engineering Squadron drills holes in a frozen concrete slab as STAFF Sergeant (SSGT) Tim Johnson of the 21st Equipment Maintenance Squadron directs a heating duct to thaw the ground. They are setting up a mobile aerial arresting system (MAAS) on the runway during Exercise COBBLER FREEZE'87, a cold-weather force projection exercise conducted by the Alaskan Air Command. 1987-03-09. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6426903. (Accessed August 16, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (1987-03-09) Sergeant (SGT) Ken Wilson of the 21st Civil Engineering Squadron drills holes in a frozen concrete slab as STAFF Sergeant (SSGT) Tim Johnson of the 21st Equipment Maintenance Squadron directs a heating duct to thaw the ground. They are setting up a mobile aerial arresting system (MAAS) on the runway during Exercise COBBLER FREEZE'87, a cold-weather force projection exercise conducted by the Alaskan Air Command. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6426903
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/6426903>.
Note: These citations are programmatically generated and may be incomplete.