Das, B. C. Differential calculus / B. C. Das, B. N. Mukherjee. - 51st - Calcutta : U.N. Dhur, 2009. - xxxii, 592 p. ; 19 c.m. Includes index. ISBN: 8185624850 Subjects--Topical Terms: Differential calculus. Dewey Class. No.: 515.3 / DAD