000 00291nam a2200133Ia 4500
003 IN-KoSCC
008 211107s9999 000 0 eng
082 _a535-9
100 1 _aClay, R.S.
245 1 _aTreatise on Practical Light(Lab.)
260 _c1911
653 _aLight.
942 _cBK
999 _c30003
_d30003