Internal revenue code :
income, employment, estate and gift tax provisions including 1981 amendments.
APA Citation
United States., Commerce Clearing House. (1982). Internal revenue code: income, employment, estate and gift tax provisions including 1981 amendments. Chicago: Commerce Clearing House.
MLA Citation
United States, and Commerce Clearing House. Internal Revenue Code: Income, Employment, Estate And Gift Tax Provisions Including 1981 Amendments. Chicago: Commerce Clearing House, 1982.
Warning: These citations may not always be complete (especially for serials).