United States. Internal Revenue Service. Tax guide to U.S. civil service retirement benefits: For use in preparing ... returns. Dept. of the Treasury, Internal Revenue Service.
Chicago Style (17th ed.) CitationUnited States. Internal Revenue Service. Tax Guide to U.S. Civil Service Retirement Benefits: For Use in Preparing ... Returns. [Washington, D.C.?]: Dept. of the Treasury, Internal Revenue Service.
MLA (9th ed.) CitationUnited States. Internal Revenue Service. Tax Guide to U.S. Civil Service Retirement Benefits: For Use in Preparing ... Returns. Dept. of the Treasury, Internal Revenue Service.
Warning: These citations may not always be 100% accurate.