00359cam a22001217a 4500008004000000082001200040245009300052260002400145300001000169650001600179700002300195700001900218180718b1973   xxu||||| |||| 00| 0 eng d  aR2 M917  aSocial stratification and career mobilitycedited by Walter Muller and Karl Ulrich Mayer  aParisbMoutonc1973  a390p.  aOccupations  aMayer, Ulrich Karl  aMuller, Walter