United States. Post Office Department. (1925). Undeliverable matter bearing pledge to pay return postage must be promptly returned. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Post Office Department. Undeliverable Matter Bearing Pledge to Pay Return Postage Must Be Promptly Returned. [Washington]: [publisher not identified], 1925.
MLA (9th ed.) CitationUnited States. Post Office Department. Undeliverable Matter Bearing Pledge to Pay Return Postage Must Be Promptly Returned. [publisher not identified], 1925.
Warning: These citations may not always be 100% accurate.