Riggs, James <br/><br/>
Production systems  planning, analysis,and control 

 - 2nd ed. 
 - New York  John Wiley  1976 
 - xvi,677 p.  Illustration 
<br/><br/><label>ISBN: </label>0471721867 
<br/><br/><label>Dewey Class. No.: </label>658.5  / RIG