United States. Internal Revenue Service. Tax professional guide to the electronic federal tax payment system. Dept. of the Treasury, Internal Revenue Service.
Chicago Style (17th ed.) CitationUnited States. Internal Revenue Service. Tax Professional Guide to the Electronic Federal Tax Payment System. [Washington, D.C.]: Dept. of the Treasury, Internal Revenue Service.
MLA (9th ed.) CitationUnited States. Internal Revenue Service. Tax Professional Guide to the Electronic Federal Tax Payment System. Dept. of the Treasury, Internal Revenue Service.
Warning: These citations may not always be 100% accurate.