APA (7th ed.) Citation

United States. Postmaster General. (1928). Reports on Form 3580 and Form 3039. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Postmaster General. Reports on Form 3580 and Form 3039. Washington: U.S. GPO, 1928.

MLA (9th ed.) Citation

United States. Postmaster General. Reports on Form 3580 and Form 3039. U.S. GPO, 1928.

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