Wohlers, Terry T. <br/><br/>
Applying AutoCAD :  a step-by-step approach : based on AutoCAD versions 2.5x and 2.6x / 

 - Mission Hills, Calif. :  Glencoe Pub. Co.,  c1988. 
 - xiv, 450 p. :  ill. ; 
<br/><br/> On t.p. the symbol "R" is superscript following AutoCAD.  Includes index. 
<br/><br/><label>ISBN: </label>0026770806 (pbk.) 
<br/><br/><label>Dewey Class. No.: </label>620.004