000 00270nam a2200109Ia 4500
008 220201s2000 xx 000 0 eng d
082 _a621
_bKUM
100 _aKumar.SS & Arora,BL
245 0 _aT.B of Applied Physics
260 _bH.Tata Publications
_c2000
942 _2ddc
999 _c87196
_d87196