Cohn, David S <br/><br/>
The complete reference autocad 2000/ 
David S. Cohn 
 - New Delhi:  TMH  2000 
 - 1275p. 
<br/><br/><label>ISBN: </label>9 780072 122411 
<br/><br/><label>Dewey Class. No.: </label>004.4 A  / COH