APA (7th ed.) Citation

United States. Internal Revenue Service. Office of International Programs. (1993). Sources of information from abroad (Rev. 2-93.). Internal Revenue Service, Assistant Commissioner (International), Office of International Programs.

Chicago Style (17th ed.) Citation

United States. Internal Revenue Service. Office of International Programs. Sources of Information from Abroad. Rev. 2-93. [Washington, D.C.?]: Internal Revenue Service, Assistant Commissioner (International), Office of International Programs, 1993.

MLA (9th ed.) Citation

United States. Internal Revenue Service. Office of International Programs. Sources of Information from Abroad. Rev. 2-93. Internal Revenue Service, Assistant Commissioner (International), Office of International Programs, 1993.