United States. Navy Department. Bureau of Construction and Repair & Snow, E. (1923). Voice tubes. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Navy Department. Bureau of Construction and Repair and Elliot Snow. Voice Tubes. Washington: U.S. GPO, 1923.
MLA (9th ed.) CitationUnited States. Navy Department. Bureau of Construction and Repair and Elliot Snow. Voice Tubes. U.S. GPO, 1923.
Warning: These citations may not always be 100% accurate.