APA (7th ed.) Citation

United States. Internal Revenue Service. (1993). Introduction toestate and gift taxes. Dept. of the Treasury, Internal Revenue Service.

Chicago Style (17th ed.) Citation

United States. Internal Revenue Service. Introduction Toestate and Gift Taxes. [Washington, D.C.?]: Dept. of the Treasury, Internal Revenue Service, 1993.

MLA (9th ed.) Citation

United States. Internal Revenue Service. Introduction Toestate and Gift Taxes. Dept. of the Treasury, Internal Revenue Service, 1993.

Warning: These citations may not always be 100% accurate.