000 00301nam a2200121Ia 4500
008 220201s1989 xx 000 0 eng d
082 _a621.3028
_bALA
100 _aAlagappan, N etc.
245 0 _aElectrical engineering materials
260 _bTata Mc Graw Hill
_c1989
300 _a120
942 _2ddc
999 _c84213
_d84213