TY  - BOOK
AU  - Lewis,J.Parry
TI  - An introduction to mathematics for students of economics / 
SN  - 0333073029
AV  - HF5691 .L48
U1  - 511.8 
PY  - 1959///
CY  - London, New York
PB  - Macmillan
KW  - Business mathematics
N1  - Includes bibliography
ER  -