Optner, Stanford L., ed. <br/><br/>
SYSTEMS analysis:selected readings 

 - Middlesex  Penguin books  1973 
 - 336 p. 
<br/><br/><label>ISBN: </label>31657 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology
<br/><br/><label>Dewey Class. No.: </label>153  / SYS