APA (7th ed.) Citation

United States. Office of Naval Intelligence. (1918). German submarine attacks. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Office of Naval Intelligence. German Submarine Attacks. Washington: U.S. GPO, 1918.

MLA (9th ed.) Citation

United States. Office of Naval Intelligence. German Submarine Attacks. U.S. GPO, 1918.

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