George .O. Head, Jan Doster Head <br/><br/>
1000 AutoCAD Tips & Tricks 

 - 
 -  Galgotia Publications  1992 
 - 544 
<br/><br/>  
<br/><br/><label>ISBN: </label>0940087537 
<br/><br/><label>Dewey Class. No.: </label>004.434