TY  - BOOK
AU  - Salas,Saturnino L.
AU  - Hille,Einar
TI  - Calculus: one and several variables 
SN  - 0471594164
PY  - 1990///]
CY  - Toronto, Canada
PB  - Wiley
KW  - Calculus
KW  - Problems, exercises, etc
ER  -