APA (7th ed.) Citation

United States. Postmaster General. (1926). Unregistered 1920 and 1921 war savings stamps no longer to be paid at post offices. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Postmaster General. Unregistered 1920 and 1921 War Savings Stamps No Longer to Be Paid at Post Offices. Washington: U.S. GPO, 1926.

MLA (9th ed.) Citation

United States. Postmaster General. Unregistered 1920 and 1921 War Savings Stamps No Longer to Be Paid at Post Offices. U.S. GPO, 1926.

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