Torok,Robert.M <br/><br/>
Operational profitability:systematic approaches for continous improvement 

 - John willey and sons  Newyork   2002 
<br/><br/><label>ISBN: </label>0-471-21473-6 
<br/><br/><label>LC Class. No.: </label>HD 58.95  / .T67 2002