APA (7th ed.) Citation

United States. Post Office Department. (1914). U.S. official postal guide. J.B. Lyon Company.

Chicago Style (17th ed.) Citation

United States. Post Office Department. U.S. Official Postal Guide. Albany, N.Y.: J.B. Lyon Company, 1914.

MLA (9th ed.) Citation

United States. Post Office Department. U.S. Official Postal Guide. J.B. Lyon Company, 1914.