000 00251nam a2200109Ia 4500
008 220201s1992 xx 000 0 eng d
100 _aAGARWAL, D.C.
245 0 _aT.B. OF PHYSICS
260 _aDELHI
_bWHEELER PUB
_c1992
300 _a668
942 _2ddc
999 _c66915
_d66915