Keys, Paul,  1954- <br/><br/>
Operational research and systems :  the systemic nature of operational research / 
Paul Keys. 
 - New York :  Plenum Press,  c1991. 
 - xiii, 267 p. :  ill. ;  24 cm. 
 - Contemporary systems thinking .
<br/><br/>Includes bibliographical references (p. 253-264) and index. 
<br/><br/><label>ISBN: </label>0306436426 
<br/><br/><label>LCCN: </label>90019443  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operations research.<br/>System analysis.
<br/><br/><label>LC Class. No.: </label>T57.6  / .K448 1991 
<br/><br/><label>Dewey Class. No.: </label>620/.001/1KEY 1991