TY - BOOK AU - Sury B AU - Sury B TI - Congruence subgroup problem: an elementary approach aimed at application T2 - Texts and readings in mathematics SN - 8185931380 (hbk) U1 - B271, P3-;1 PY - 2003/// CY - New Delhi PB - HBA KW - Negative solutions KW - Positive cases KW - CSP N1 - Appendix 273-285p.; Bibliography 286-296p.; Index 297-301p ER -