00702nam0-22002531i-450-990003922730403321000392273FED01000392273(Aleph)000392273FED0100039227320020909d1987----km-y0itay50------baengUSPrinciples of group solidarityMichael HechterLos AngelesUniversity of California Press1987220 pg.23 cmHechter,Michael147762ITUNINARICAUNIMARCBK990003922730403321A1 532636DECTSDECTSPrinciples of group solidarity512295UNINA