000 00315nam a2200145Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
020 _c250/-
040 _aET
100 _aJAIN MAHESH C.
245 0 _aQUANTAM MECHANICS
260 _bPHI LEARNING
_aNEW DELHI
300 _a308
500 _a26248
942 _cBK
999 _c32263
_d32263