000 00265nam a2200109Ia 4500
008 220201s1995 xx 000 0 eng d
100 _aTHERAJA, B.L. & THERAJA, A.K.
245 0 _aMODERN PHYSICS
260 _aDELHI
_bS.C. CHAND
_c1995
300 _a432
942 _2ddc
999 _c66506
_d66506