Stroebel, Leslie. <br/><br/>
Visual concepts :  for photographers / 
Leslie Stroebel, Hollis Todd & Richard Zakia. 
 - London :  Focal Press,  1980. 
 - 350 p. :  ill. (some col.) ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 337-343. 
<br/><br/><label>ISBN: </label>0240510259 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vision Percepion.<br/>Photography.