GUPTA, B.N. <br/><br/>
STATISTICS : THEORY AND PRACTICE 

 - Agra  Sahitya Bhawan Publications, Agra   1999 
<br/><br/><label>ISBN: </label>81 7618 133 1 
<br/><br/><label>Dewey Class. No.: </label>519.5  / GUP/S