APA (7th ed.) Citation

United States. Coast Guard. (1921). Instructions to travelers. GPO.

Chicago Style (17th ed.) Citation

United States. Coast Guard. Instructions to Travelers. [Washington]: GPO, 1921.

MLA (9th ed.) Citation

United States. Coast Guard. Instructions to Travelers. GPO, 1921.

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