000 00345nam a2200133Ia 4500
008 100324s9999 xx 000 0 und d
100 _aWorld Bank.
245 _aTesting for labor market duality
260 _c1990
_bWorld Bank
_aWashington DC
366 _b1990
650 _aMarketing
942 _cBK
999 _c73039
_d73039