Sury B <br/><br/>
Congruence subgroup problem  an elementary approach at applications 

 - New Delhi  Hindustan Book Aegncy  2003 
 - vx, 301p.  HB  22cm. 
 - Texts and readings in mathematics 24 .
<br/><br/> includes bibliographical references and index 
<br/><br/><label>ISBN: </label>8185931380 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Congruence subgroup elementary
<br/><br/><label>Dewey Class. No.: </label>512.72  / SUR