000 00242nam a2200109Ia 4500
020 _a0130399426
082 _a511
100 _aBALAKRISHNAN, V.K
245 _aINTRODUCTORY DISCRENE MATHEMATHICS
260 _aNEW DELHI
_b PHI
_c1991
942 _cBK
999 _c1847
_d1847