The freely available Adobe Acrobat Reader software is required to view, print, and search the products listed below. Publication 963, Federal - State Reference Guide PDF‡ Publication 3908, Gaming Tax Law for Indian Tribal Governments PDF‡ Publication 4268, Employment Tax Desk Guide PDF ‡ Items marked with this symbol are available for order. To order these items by phone, please contact the IRS Forms Distribution Center at 800-829-3676. Operations are available Monday–Friday, 7 a.m.–10 p.m. (local time zones apply); otherwise, an automated menu will process your order. Orders are limited to 2 copies per request.