Das, B. C Differential calculus / B. C. Das. - 40th ed. - Calcutta: U. N. Dhur, c1994. - xx, 472p.: ill.;, figs.;, tables.;, maps.; 18 cm. Includes index. Dept. of CSE ISBN: 8185624542 Subjects--Topical Terms: Successive differentiation Dewey Class. No.: 515.33 / DAD