000			00383nam a2200181Ia 4500
008			240220s9999 xx 000 0 und d
041			_aENG
082			_a635.3
100			_aGhatak Ajoy
245		0	_aOptics
260			_aNew Delhi
260			_bTata Mcgraw-Hill Pub. Co. Ltd..
260			_c1977
300			_a538p.
365			_b48
650			_aCHEMISTRY
942			_cDBK
999			_c18188 _d18188