APA (7th ed.) Citation

United States. Postmaster General. (1926). Insured parcels to be properly indorsed and numbered. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Postmaster General. Insured Parcels to Be Properly Indorsed and Numbered. Washington: U.S. GPO, 1926.

MLA (9th ed.) Citation

United States. Postmaster General. Insured Parcels to Be Properly Indorsed and Numbered. U.S. GPO, 1926.

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