OPTNER Stanford L. Ed. <br/><br/>
System analysis. 
OPTNER Stanford L. Ed. 
 - Harmonds  Worth Penguin Books          1973 
 - 336p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:(B2893), L3/SC