APA (7th ed.) Citation

(1929). Coast Artillery Corps: Service of piece, 12-inch mortar (fixed armament). GPO.

Chicago Style (17th ed.) Citation

Coast Artillery Corps: Service of Piece, 12-inch Mortar (fixed Armament). [Washington]: GPO, 1929.

MLA (9th ed.) Citation

Coast Artillery Corps: Service of Piece, 12-inch Mortar (fixed Armament). GPO, 1929.

Warning: These citations may not always be 100% accurate.