Gaither , Norman <br/><br/>
Operation management 

 - 9th ed. 
 - New Delhi  Cengage Learning Media  2004 
 - xiv p. + 811 
<br/><br/><label>ISBN: </label>81-315-0048-4 
<br/><br/><label>Dewey Class. No.: </label>658.152 G129O