APA (7th ed.) Citation

United States. Postmaster General. (1931). Demurrage on domestic collect-on-delivery mail (registered and unregistered). U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Postmaster General. Demurrage on Domestic Collect-on-delivery Mail (registered and Unregistered). Washington: U.S. GPO, 1931.

MLA (9th ed.) Citation

United States. Postmaster General. Demurrage on Domestic Collect-on-delivery Mail (registered and Unregistered). U.S. GPO, 1931.

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