00776nam0-22002891i-450-9900031990104033210-333-21273-8000319901FED01000319901(Aleph)000319901FED0100031990120000920d1977----km-y0itay50------baitaITSociological Research MethodsAn IntroductionEdited by Martin Bulmer.LondonMacmillan\c\\1977.XII, 363 p.21 cm11130Bulmer,MartinITUNINARICAUNIMARCBK99000319901040332111130 BUL12612/ISESSESSociological Research Methods453079UNINAING01