APA (7th ed.) Citation

United States. Hydrographic Office. (1920). Noon-interval tables. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Hydrographic Office. Noon-interval Tables. Washington: U.S. GPO, 1920.

MLA (9th ed.) Citation

United States. Hydrographic Office. Noon-interval Tables. U.S. GPO, 1920.

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