Cohen S S <br/><br/>
Operational research 
Cohen S S 
 - London  Edward Arnold          1985 
 - vii,245p.  cm. 
<br/><br/><label>Standard No.: </label>24157 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B2893, M5