APA (7th ed.) Citation

United States. Bureau of Reclamation. (1931). Boulder Canyon Project; questions and answers. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Bureau of Reclamation. Boulder Canyon Project; Questions and Answers. Washington: U.S. GPO, 1931.

MLA (9th ed.) Citation

United States. Bureau of Reclamation. Boulder Canyon Project; Questions and Answers. U.S. GPO, 1931.

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