SURY,B <br/><br/>
CONGRUENCE SUBGROUP PROBLEM:ELEMENTARY APPROACH AIMED AT APPPLICATIONS 

 - NEW DELHI  Hindustan Book Agency  2003 
 - ix+301p.,21X14Cms. 
<br/><br/><label>ISBN: </label>8585931380 
<br/><br/><label>Dewey Class. No.: </label>512.81 S96