(1929). Service battery, 155-mm. howitzer regiment (motorized); effective July 1, 1930. GPO.
Chicago Style (17th ed.) CitationService Battery, 155-mm. Howitzer Regiment (motorized); Effective July 1, 1930. [Washington]: GPO, 1929.
MLA (9th ed.) CitationService Battery, 155-mm. Howitzer Regiment (motorized); Effective July 1, 1930. GPO, 1929.
Warning: These citations may not always be 100% accurate.