American Forces Information Service (1981). NAVMC2727, A Pocket guide to NATO. DA pam360-419. Washington, D.C.?: Department of Defense. Retrieved 1 February 2015.
Hattendorf, John B. (Summer 2008). "Admiral Richard G. Colbert: Pioneer in Building Global Maritime Partnerships". Naval War College Review. 61 (3): 109–131. ISSN0028-1484. JSTOR26396946.
NATO Office of Information and Press (2001). NATO Handbook (1. Aufl ed.). Brussels: NATO. p. 266. ISBN978-92-845-0146-5. Archived from the original on August 13, 2008. Retrieved 2008-09-03.
NATO Office of Information and Press (2001). NATO Handbook (1. Aufl ed.). Brussels: NATO. p. 266. ISBN978-92-845-0146-5. Archived from the original on August 13, 2008. Retrieved 2008-09-03.
Hattendorf, John B. (Summer 2008). "Admiral Richard G. Colbert: Pioneer in Building Global Maritime Partnerships". Naval War College Review. 61 (3): 109–131. ISSN0028-1484. JSTOR26396946.