TY  - BOOK
AU  - Sagan,Hans
TI  - Integral and differential calculus : an intuitive approach 
U1  - 517 SAG  
PY  - 1962///.
CY  - New York : 
PB  - John Wiley and Sons, INc., 
KW  - Integral calculus
KW  - Differential calculus
N1  - Includes index.
ER  -