APA (7th ed.) Citation

United States. Postmaster General. (1924). Rules for treatment of undeliverable mail, for guidance of employees of Chicago post office. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Postmaster General. Rules for Treatment of Undeliverable Mail, for Guidance of Employees of Chicago Post Office. Washington: U.S. GPO, 1924.

MLA (9th ed.) Citation

United States. Postmaster General. Rules for Treatment of Undeliverable Mail, for Guidance of Employees of Chicago Post Office. U.S. GPO, 1924.

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