000 00358nam a2200133Ia 4500
082 _a330.12
_bPAC
100 _aPacker, Arnold H.
245 _aModels of economic systems. : a theory for their development and use.
260 _aNew York
_bMIT Press
_c1972
300 _a236p.
890 _aUnited States
891 _aFord Foundation
999 _c23001
_d23001
650 _aPhysics--Philosophy
_aEconomic policy--Mathematical models
650 _aManners and customs