Leach  <br/><br/>
AutoCad 2002 assistant  
/ James A. Leach, Bruce A. Duffy. 
 - 1st ed.. 
 -  [year of publication not identified] 
<br/><br/> Includes index p.122 - 123 
<br/><br/><label>ISBN: </label>0072513683  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer graphics
<br/><br/><label>Dewey Class. No.: </label>620.004202855369 LEA 2002