Birtle. (1998). U.S. Army counterinsurgency and contingency operations doctrine, 1890-1941. Center of military history.
Chicago Style (17th ed.) CitationBirtle. U.S. Army Counterinsurgency and Contingency Operations Doctrine, 1890-1941. United States: Center of military history, 1998.
MLA (8th ed.) CitationBirtle. U.S. Army Counterinsurgency and Contingency Operations Doctrine, 1890-1941. Center of military history, 1998.
Warning: These citations may not always be 100% accurate.