APA (7th ed.) Citation

Walker, D. M. (2003). U.S. Postal Service: Key postal transformation issues. U.S. General Accounting Office.

Chicago Style (17th ed.) Citation

Walker, David M. U.S. Postal Service: Key Postal Transformation Issues. [Washington, D.C.]: U.S. General Accounting Office, 2003.

MLA (9th ed.) Citation

Walker, David M. U.S. Postal Service: Key Postal Transformation Issues. U.S. General Accounting Office, 2003.