00784nam0 22002651i 450 99000729371040332120180724112330.0000729371FED01000729371(Aleph)000729371FED0100072937120021010d1985----km-y0itay50------baengLongitudinal analysis of labour market dataedited by James J.Heckman and Burton SingerCambridgeCambridge University Press1985Heckman,James Joseph<1944- >Singer,BurtonITUNINARICAUNIMARCBK990007293710403321XV S 102DTEDTELongitudinal analysis of labour market data1508126UNINAGEN01