TY  - BOOK
AU  - Holcombe Randall G
TI  - Economics models and methodology
T2  - Contributions in Economic and economic History
U1  - X: (B), M9 
PY  - 1989///
CY  - New York
PB  - Greenwood Press USA       
KW  - Mathematics Economics
N1  - Bibliography P 189-196
ER  -