Raabe, William A. <br/><br/>
Federal tax research / 
William A. Raabe, Gerald E. Whittenburg, Debra L. Sanders 
 - 9th ed. 
 - Mason, OH :  Cengage--South-Western,  2012, 2009. 
 - xviii, 524 p. ;  27 cm. 
<br/><br/> Rev. ed. of: Federal tax research / William A. Raabe ... [et al.]. 8th ed. c2009. 
<br/><br/><label>ISBN: </label>9781111221645 (hbk.)  RM815.15 1111221642 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Taxation--Law and legislation--Legal research.--United States<br/>Legal research--United States--Problems, exercises, etc.