TY  - BOOK
AU  - Beckwith,Howard B., x
AU  - x
TI  - Calculus for Business and life: x
SN  - 0534005519
U1  - 515/B397c 
PY  - 1978///
CY  - Belmont, Callifornia
PB  - Wadsworth Pub.
KW  - Calculus
N1  - Index
ER  -