(1929). Headquarters and headquarters battery, observation battalion, corps artillery brigade (motorized); effective July 1, 1930. GPO.
Chicago Style (17th ed.) CitationHeadquarters and Headquarters Battery, Observation Battalion, Corps Artillery Brigade (motorized); Effective July 1, 1930. [Washington]: GPO, 1929.
MLA (9th ed.) CitationHeadquarters and Headquarters Battery, Observation Battalion, Corps Artillery Brigade (motorized); Effective July 1, 1930. GPO, 1929.
Warning: These citations may not always be 100% accurate.