TY  - BOOK
AU  - Bello,Ignacio
TI  - Contemporary business mathematics
SN  - 0669121746
U1  - 510 B446c 1988 
PY  - 1986///
CY  - Lexington, Mass.
PB  - D.C. Heath.
KW  - Business mathematics
N1  - Includes index
ER  -