Hartmann, Robert R. <br/><br/>
Graphics for designers  a studio workbook / 
by Robert R. Hartmann 
 - 1st ed. 
 - Ames :  Iowa State University Press,  1976 
 - iv, 124 p. ; 5  leaves of plates :  ill. ;  22 x 30 cm. 
<br/><br/>Bibliography: p. 123 
<br/><br/><label>ISBN: </label>0813807603 
<br/><br/><label>LCCN: </label>76-9662 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Design<br/>Graphic arts<br/>Visual perception