TY  - DATA
AU  - Sury, B.
TI  - ( The ) congruence subgroup problem: an elementary approach aimed at applications
SN  - 81-85931-38-0:
U1  - 512.2 
PY  - 2003///
CY  - New Delhi
PB  - Hindustan Books
KW  - GROUP THEORY
N1  - Includes index and bibliography
ER  -