APA (7th ed.) Citation

United States. Postmaster General. (1931). War savings securities. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Postmaster General. War Savings Securities. Washington: U.S. GPO, 1931.

MLA (9th ed.) Citation

United States. Postmaster General. War Savings Securities. U.S. GPO, 1931.

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