Federal tax regulations, 1967 :  in force December 19, 1966. 

 - St. Paul, MN :  West Pub. Co.,  [1967] 
<br/><br/> Kept to date through U.S. code congressional and administrative news. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Internal revenue law -- United States.--Internal revenue law -- United States.