TY  - BOOK
AU  - Lewis,J.Parry
TI  - An introduction to mathematics for students of economics
U1  - 510.02433 
PY  - 1959/// [reprint 1964]
CY  - London, New York
PB  - Macmillan, St. Martin's P.
KW  - Mathematics
N1  - Bibliography: p. 561-562
ER  -