United States. Post Office Department. (1943). United States official postal guide: Monthly supplement to parts 1 and 2, 5th series, Vol. 3, No. 24. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Post Office Department. United States Official Postal Guide: Monthly Supplement to Parts 1 and 2, 5th Series, Vol. 3, No. 24. [Washington]: [s.n.], 1943.
MLA (8th ed.) CitationUnited States. Post Office Department. United States Official Postal Guide: Monthly Supplement to Parts 1 and 2, 5th Series, Vol. 3, No. 24. [s.n.], 1943.
Warning: These citations may not always be 100% accurate.