TY  - BOOK
AU  - Launhardt Wilhelm
TI  - Mathematical principles of economics Tr by Hilda
T2  - Classic In The History of Economics
SN  - 1852787236
U1  - X:(B), N3 
PY  - 1993///
CY  - Hants
PB  - Edward Elgar         
KW  - Mathematical Economics
ER  -