00825nam0-22003131i-450-99000052382040332120101123180856.00-8039-0654-4000052382FED01000052382(Aleph)000052382FED0100005238220020821d1983----km-y0itay50------baengUSy-------001yyCausal modelingHerbert B. Asher2nd ed.Newbury parkSAGE198396 p.23 cmQuantitative applications in the social sciences3Teoria dei modelliAsher,Herbert B.ITUNINARICAUNIMARCBK99000052382040332110 ECON 133DIS 3979DINELDINELUNINA