APA (7th ed.) Citation

United States. Department of the Interior. (1932). Guidance leaflets: Art. GPO.

Chicago Style (17th ed.) Citation

United States. Department of the Interior. Guidance Leaflets: Art. [Washington]: GPO, 1932.

MLA (9th ed.) Citation

United States. Department of the Interior. Guidance Leaflets: Art. GPO, 1932.

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