00582cam a22001932  4500001001100000005001700011008004100028020001700069040001500086100003300101245010500134250001300239260003400252300001500286650003900301650004200340852000300382852000300385000002405920151217152256.0130509s         xx           000 0 eng d  a0521107709 :  aKABUcKABU1 aGambetta, Diego.@000018397810aWere they pushed or did they jump? :bindividual decision mechanisms in education /cDiego Gambetta.  a1st  ed.  aCambridge :bC. U. P.,c1987.  ax, 234  p. 0aEducational sociology.@0000153711 0aEducational equalization.@00001839791 1