Burton , David . <br/><br/>
Elementary number theory /  
David M. Burton. 
 - 2nd ed /   . 
 - New Delhi :   universal Book Stall ,   1989. 
 - xvii, 450p. :   Tables , charts ;   23cm .  
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>8185392692  Rs. 250.00 
<br/><br/><label>Subjects--Index Terms: </label>MATHEMATICS 
<br/><br/><label>Dewey Class. No.: </label>512.72  / BUR/E