GUPTA C.B <br/><br/>
AN INTRODUCTION TO STATISTICAL METHODS 

 - 16th 
 - New Delhi  Vikas Publishing House Pvt. Ltd, New Delhi   1982 
<br/><br/><label>ISBN: </label>0706920414 
<br/><br/><label>Dewey Class. No.: </label>519.5  / GUP/A