00541nam a22001577a 45000010005000000030010000050050017000150400014000320080041000460200016000871000031001032450150001342600043002843000011003276500045003385169MX-SIABUC20260702203347.0  aMX-SIABUC991231s        0000000             000 d  a0-521-3297440aUnger, Roberto Mangabeira.0 aSocial Theory : Its situation and its task a critical introduction to politics a work in constructive social theory/cby Roberto Mangabeira Unger4 aNew York :bCambridge University Press4 a236 p.  a1.DERECHOz-FILOSOFÍAz-ESTADOS UNIDOS