APA (7th ed.) Citation

United States. Hydrographic Office. (1920). Pacific Islands pilot: Volume I (western groups). GPO.

Chicago Style (17th ed.) Citation

United States. Hydrographic Office. Pacific Islands Pilot: Volume I (western Groups). [Washington]: GPO, 1920.

MLA (9th ed.) Citation

United States. Hydrographic Office. Pacific Islands Pilot: Volume I (western Groups). GPO, 1920.

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