APA (7th ed.) Citation

United States. Postmaster General. (1923). How 1 postmaster encouraged better and more complete addresses on mail. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Postmaster General. How 1 Postmaster Encouraged Better and More Complete Addresses on Mail. Washington: [publisher not identified], 1923.

MLA (9th ed.) Citation

United States. Postmaster General. How 1 Postmaster Encouraged Better and More Complete Addresses on Mail. [publisher not identified], 1923.

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