Niven,Ivan <br/><br/>
Introduction to the Theory of Numbers 

 - 5 
 - New Delhi  Wiley India Pvt.Ltd.  1991 
 - p.529 
<br/><br/><label>ISBN: </label>9788126518111 
<br/><br/><label>Subjects--Topical Terms: </label> Congruences  Quadratic Reciprocity and Quadratic Forms  Algebraic Numbers 
<br/><br/><label>Dewey Class. No.: </label>512.81 N734