These helicopters, a Bulgarian IAR-330 Puma, middle, a Romanian IAR-330 SOCAT and a Bulgarian Mi-17 Search And Rescue (SAR) helicopter, work together over Krumovo, Air Base (AB) in Bulgaria (BG), to secure an airfield as part of exercise Cooperative Key 2003. Exercise Cooperative Key is designed to promote procedural dialogue between North Atlantic Treaty Organization (NATO) and partner nations

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. These helicopters, a Bulgarian IAR-330 Puma, middle, a Romanian IAR-330 SOCAT and a Bulgarian Mi-17 Search And Rescue (SAR) helicopter, work together over Krumovo, Air Base (AB) in Bulgaria (BG), to secure an airfield as part of exercise Cooperative Key 2003. Exercise Cooperative Key is designed to promote procedural dialogue between North Atlantic Treaty Organization (NATO) and partner nations. 2003-09-08. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6647673. (Accessed July 18, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (2003-09-08) These helicopters, a Bulgarian IAR-330 Puma, middle, a Romanian IAR-330 SOCAT and a Bulgarian Mi-17 Search And Rescue (SAR) helicopter, work together over Krumovo, Air Base (AB) in Bulgaria (BG), to secure an airfield as part of exercise Cooperative Key 2003. Exercise Cooperative Key is designed to promote procedural dialogue between North Atlantic Treaty Organization (NATO) and partner nations. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6647673
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/6647673>.
Note: These citations are programmatically generated and may be incomplete.