00904nam0-22003251i-450-990003743980403321200010100-12-095950-X000374398FED01000374398(Aleph)000374398FED0100037439820001010d--------km-y0itay50------baitay-------001yyRole theoryexpectations, identities, and behaviorsBruce J. Biddle.New YorkAcademic Pressc1979x, 416 p.fig., tab.23 cmRUOLOAspetti psicosocialiIDENTITA'Aspetti psicosociali302.15Biddle,Bruce J.141984ITUNINARICAUNIMARCBK990003743980403321302.15 BID 12868BFSBFSRole theory509404UNINAING01