000 00324nam a2200145Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
020 _c600/-
040 _aET
100 _aAVADHANULU M N
245 0 _aENGINEERNING PHYSICS
260 _bS.CHAND & COMPANY
_aNEW DELHI
300 _a1189
500 _a20816
942 _cBK
999 _c27031
_d27031