00864nam0-22003011i-450-990003176700403321000317670FED01000317670(Aleph)000317670FED0100031767020000920d1968----km-y0itay50------baitaITReadings in Reference Group Theory and ResearchEdited by Herbert H. Hyman and Eleanor Singer.New YorkFree Press1968.xi, 509 p.24 cmGruppi sociali12400Hyman,Herbert Hiram<1918- >Singer,EleanorITUNINARICAUNIMARCBK99000317670040332112400 REA041227SESSESReadings in Reference Group Theory and Research452912UNINAING01