000			00355nam a2200145Ia 4500
005			20260205095836.0
008			260111s9999||||xx |||||||||||||| ||und||
082			_a530 C392L
100			_aDeepanwita Chattopadhyay
245		0	_aLets experiments with light
260			_aNew delhi _bLearners _c1992
300			_a40p.
690			_aLight
942			_cBK
999			_c221061 _d221061