APA (7th ed.) Citation

United States. Postmaster General. (1932). Certificate of inspection not required for sweetpotato plants. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Postmaster General. Certificate of Inspection Not Required for Sweetpotato Plants. Washington: U.S. GPO, 1932.

MLA (9th ed.) Citation

United States. Postmaster General. Certificate of Inspection Not Required for Sweetpotato Plants. U.S. GPO, 1932.

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