Nagell, Trygve,  1895- <br/><br/>
Introduction to number theory/ 
Trygve Nagell. 
 - New York:  Wiley,  [1951]. 
 - 309 p.;  24 cm. 
<br/><br/><label>LCCN: </label>51013344 //r90 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Number theory.
<br/><br/><label>Dewey Class. No.: </label>512.7  / N147i