APA (7th ed.) Citation

United States. Internal Revenue Service. Federal-state reference guide. Dept. of the Treasury, Internal Revenue Service.

Chicago Style (17th ed.) Citation

United States. Internal Revenue Service. Federal-state Reference Guide. [Washington, D.C.?]: Dept. of the Treasury, Internal Revenue Service.

MLA (9th ed.) Citation

United States. Internal Revenue Service. Federal-state Reference Guide. Dept. of the Treasury, Internal Revenue Service.

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