00859nam0-22003251i-450-99000251289040332120130122185315.00803917090000251289FED01000251289(Aleph)000251289FED0100025128920030910d1981----km-y0itay50------baengUSResearch designPaul E. SpectorLos AngelesSage198180 p.22 cmQuantitative applications in the social sciences23Tecniche di rilevazioneSpector,Paul E.102368ITUNINARICAUNIMARCBK990002512890403321XV I 118DTEXXIX-D-204951MASDTEMASResearch design439783UNINA