000 00399nam a2200133Ia 4500
008 210917s9999 xx 000 0 und d
082 _a535 .G1
100 _aGhatak, Ajoy
245 0 _aExperiments With Light
260 _aNew Delhi
260 _b M v Learning
260 _c2015
942 _cCD
999 _c153599
_d153599