00777nam0-22002891i-450-9900025068204033210471625922000250682FED01000250682(Aleph)000250682FED0100025068220000920d1989----km-y0itay50------baENGPanel SurveysDaniel KasprzykGreg DuncanGraham Kalton.New YorkJohn Wiley1989.XIV, 592 p.23 cmPianificazioni di indagini, Campionamento001Kasprzyk,DanielITUNINARICAUNIMARCBK990002506820403321XV-B-241221MASMASPanel Surveys439885UNINAING01