TY  - BOOK
AU  - Ruud, Warren L,
AU  - Shell, Terry L,
TI  - Prelude to calculus
SN  - 0534102905
AV  - QA39.2 .R88 1990
U1  - 510 20
PY  - 1990///
CY  - Belmont, Calif
PB  - Wadsworth Pub
KW  - Mathematics
N1  - Includes index
ER  -