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

 - 9th 
 - New Delhi  Vikas Publishing House Pvt. Ltd, New Delhi   1981 
<br/><br/><label>ISBN: </label>0706912586 
<br/><br/><label>Dewey Class. No.: </label>519.5  / GUP/A