GUPTA, S.L. Optics / [by] S.L.Gupta, V.Kumar, S.K.Sangal - 4th ed., rev and enl. - Meerut Pragati Prakashan 1990 - viii, 446 p. ISBN: 112378 Subjects--Topical Terms: Optics Dewey Class. No.: 535 / GUP