APA (7th ed.) Citation

United States. Hydrographic Office. (1931). American practical navigator: Epitome of navigation and nautical astronomy. GPO.

Chicago Style (17th ed.) Citation

United States. Hydrographic Office. American Practical Navigator: Epitome of Navigation and Nautical Astronomy. [Washington]: GPO, 1931.

MLA (9th ed.) Citation

United States. Hydrographic Office. American Practical Navigator: Epitome of Navigation and Nautical Astronomy. GPO, 1931.

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