TY  - BOOK
AU  - Sury,B.
TI  - Congruence subgroup problem: an elementary approach aimed at applications
SN  - 8585931380
U1  - 512.72 SU77C 
PY  - 2003///
CY  - New Delhi
PB  - Hindustan Book
KW  - Solvable groups
KW  - Mathematics
ER  -