Levin R I <br/><br/>
Statistics for management 
Levin R I; Rubin D S 
 - New Delhi  New Delhi, Prentice-Hill of India pvt.  1997 
 - 1026p 
<br/><br/><label>ISBN: </label>81-203-1235-X 
<br/><br/><label>Source: </label>Textbook