APA (7th ed.) Citation

United States. Postmaster General. (1930). Addressing of parcels on more than one side to be discouraged. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Postmaster General. Addressing of Parcels on More than One Side to Be Discouraged. Washington: U.S. GPO, 1930.

MLA (9th ed.) Citation

United States. Postmaster General. Addressing of Parcels on More than One Side to Be Discouraged. U.S. GPO, 1930.

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