000 00451nam a2200121Ia 4500
008 100324s9999 xx 000 0 und d
100 _aWorld Bank.
245 _aCollecting panel data in developing countries; does it make sense by Ashenfelter et al 1985. Living standards measurement study 23
260 _bWorld Bank
_aWashington DC
541 _gGratis
650 _aAccounting
942 _cBK
999 _c70017
_d70017