APA (7th ed.) Citation

United States. Postmaster General. (1927). Separate requisitions to be submitted for different patterns of special-request envelopes. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Postmaster General. Separate Requisitions to Be Submitted for Different Patterns of Special-request Envelopes. Washington: U.S. GPO, 1927.

MLA (9th ed.) Citation

United States. Postmaster General. Separate Requisitions to Be Submitted for Different Patterns of Special-request Envelopes. U.S. GPO, 1927.

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