TY  - BOOK
AU  - Singh, U.P
AU  - Srivatsava, R.J
AU  - Siddiqui, N.H
TI  - Textbook of differential calculus
SN  - 9789380199559
U1  - 515.33 
PY  - 2011///
CY  - New Delhi
PB  - Wisdom Press
N1  - includes index
ER  -