000 00277cam a22000977a 4500
008 180718b1993 xxu||||| |||| 00| 0 eng d
245 _aResearch observer
_cby World Bank, U.S.A.
260 _aWashington, D.C.
_bThe World Bank
_c1993
300 _a265p.
700 _aU.S.A. World Bank
999 _c327946
_d327946