Ackoff Russell L <br/><br/>
Fundamentals of operations reaearch. 
Ackoff Russell L; Sasieni Maurice W 
 -  1968 
<br/><br/><label>Standard No.: </label>71303 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B2893, K8-K8;5