000 00270nam a2200121Ia 4500
008 230321s9999 xx 000 0 und d
082 _bKRI
100 _aKrishnamacharyula, V.
245 0 _aClassroom Dynomics
260 _bNeelkamal
_c2006
300 _a224
942 _cBK
999 _c2304
_d2304