Knowlton, Kenneth W <br/><br/>
Technical freehand drawing and sketching 
by Kenneth W. Knowlton, Robert A. Beauchemin, Patrick J. Quinn 
 - New York  Gregg Division, McGraw-Hill  c1977 
 - 314 p.  ill.  28 cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0070352070 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Freehand technical sketching