Hasse,Helurut <br/><br/>
Number theory 
/ Helurut Hasse; ed. and prepared for publ. by Horst Günter Zimmer 
. - 3d ed 
. - Berlin  : springer verlag, 1980
. - xvii-638 p.  : ill  ; 25 cm. 
 - Grundlehren der mathematischen wissenschafter  229 .
<br/><br/>index 
<br/><br/><label>ISBN: </label>3540082751 
<br/><br/><label>Universal Decimal Class. No.: </label>511.