Introduction to statistics :   Vol. I /  
By L. Choudhury .  
 - 3rd rev. ed. 
 - Guwahati:  Kitapghar,  2002. 
 - x,286p. 
<br/><br/><label>Subjects--Index Terms: </label>Commerce Statistics 
<br/><br/><label>Dewey Class. No.: </label>519.5