Jha, P. . Analytical Geometry of the Conic Section / Textual Documents P.Jha, V.R.Chariar & D.P.Verma. - 2nd ed. / - Patna : Novelty & Co. , 1968. - 345p. : ill ; 22cm . Subjects--Index Terms: Analytical Geometry Conic Section G-Mathematics Dewey Class. No.: 515.56 / Jh 559 An