US Marine Corps (USMC) Basic Training recruits from Platoon 2086, Parris Island Marine Corps Recruit Depot (MCRD), Parris Island, South Carolina (SC), practice the proper way to tackle an armed enemy while unarmed during the "Crucible" phase of training. The Crucible phase of training consists of 54 hours of field training, including sleep deprivation, food deprivation, with day and night operations and is one of the final tests for recruits to become a Marine

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994. US Marine Corps (USMC) Basic Training recruits from Platoon 2086, Parris Island Marine Corps Recruit Depot (MCRD), Parris Island, South Carolina (SC), practice the proper way to tackle an armed enemy while unarmed during the "Crucible" phase of training. The Crucible phase of training consists of 54 hours of field training, including sleep deprivation, food deprivation, with day and night operations and is one of the final tests for recruits to become a Marine. 2003-09-23. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6648812. (Accessed December 13, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994, (2003-09-23) US Marine Corps (USMC) Basic Training recruits from Platoon 2086, Parris Island Marine Corps Recruit Depot (MCRD), Parris Island, South Carolina (SC), practice the proper way to tackle an armed enemy while unarmed during the "Crucible" phase of training. The Crucible phase of training consists of 54 hours of field training, including sleep deprivation, food deprivation, with day and night operations and is one of the final tests for recruits to become a Marine. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6648812
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/6648812>.
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