@book{178597,
	author = {Subrahmanyam, N. and Brij Lal},
	title = {A textbook of optics for B.Sc. classes as per UGC model syllabus /},
	publisher = {S. Chand},
	year = {2014(repr.)},
	address = {New Delhi},
	edition = {Multicolour illustrative ed}
}