Das, B.C. Differential Calculus - 52th ed. - Kalkata: U.N. Dhur & Sons Pvt. Ltd., 2012 - xxvii, 602p. : 21 cm. Includes Index ISBN: 9789380673448 Subjects--Topical Terms: Differential, Calculus, Mathematics Dewey Class. No.: 515.33 D229d 2012