TY  - BOOK
AU  - Ledermann, Walter
TI  - Mathematical methods in economics
T2  - Handbook of applicable Mathematics
SN  - 0471904228
U1  - 330.0151 
PY  - 1984///
CY  - Chichester
PB  - John Wiley
N1  - A Wiley Interscience publication
ER  -