A combat-ready Marine from Weapons Platoon, 3rd Battalion, 2nd Marines, looks through the sight of the M-203 grenade launcher 40mm that is attached to his M-16A1 rifle. This is part of Operation CAX 1-2-82 held at the Marine Corps Air-to-Ground Combat Center

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. A combat-ready Marine from Weapons Platoon, 3rd Battalion, 2nd Marines, looks through the sight of the M-203 grenade launcher 40mm that is attached to his M-16A1 rifle. This is part of Operation CAX 1-2-82 held at the Marine Corps Air-to-Ground Combat Center. 1981-11-01. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6348846. (Accessed July 21, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (1981-11-01) A combat-ready Marine from Weapons Platoon, 3rd Battalion, 2nd Marines, looks through the sight of the M-203 grenade launcher 40mm that is attached to his M-16A1 rifle. This is part of Operation CAX 1-2-82 held at the Marine Corps Air-to-Ground Combat Center. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6348846
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/6348846>.
Note: These citations are programmatically generated and may be incomplete.