United States. Internal Revenue Service. (2002). Charitable contributions: Substantiation and disclosure requirements (Rev. 3-2002.). Dept. of the Treasury, Internal Revenue Service.
Chicago Style (17th ed.) CitationUnited States. Internal Revenue Service. Charitable Contributions: Substantiation and Disclosure Requirements. Rev. 3-2002. [Washington, D.C.?]: Dept. of the Treasury, Internal Revenue Service, 2002.
MLA (9th ed.) CitationUnited States. Internal Revenue Service. Charitable Contributions: Substantiation and Disclosure Requirements. Rev. 3-2002. Dept. of the Treasury, Internal Revenue Service, 2002.
Warning: These citations may not always be 100% accurate.