000 00424nam a2200181Ia 4500
008 210210b1957 xxu||||| |||| 00| 0 eng d
041 _aeng
082 _a534/81
100 _aRAMAMOORTHI (S)
245 _aTextbook of light
260 _aMadras
_bThe National Publishing Co
_c1957
300 _a245
650 _aTextbook
650 _alight
690 _aSound
700 _aKRISHNAMOORTHY (K S)
906 _a008569
999 _c126413
_d126413