Robert Sekuler <br/><br/>
Perception 

 - 2nd 
 - New York  McGraw Hill Book Company  1990 
 - xvi-519 
<br/><br/><label>ISBN: </label>0-07-056065-x 
<br/><br/><label>Dewey Class. No.: </label>153.705 SEK-P 1990