APA (7th ed.) Citation

United States. Post Office Department. (1932). Reminder; new postage rates on 4th-class matter effective Oct. 1, 1932. GPO.

Chicago Style (17th ed.) Citation

United States. Post Office Department. Reminder; New Postage Rates on 4th-class Matter Effective Oct. 1, 1932. [Washington]: GPO, 1932.

MLA (9th ed.) Citation

United States. Post Office Department. Reminder; New Postage Rates on 4th-class Matter Effective Oct. 1, 1932. GPO, 1932.

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