00711nam a2200193Ia 4500008004100000010001300041020001800054040001700072082002500089100002100114245008400135260005100219300001400270440006200284500008000346650005400426700001700480700002000497190327s9999||||xx |||||||||||||| ||und||  a77-17251  a0-8018-2020-0  aNITILcNITIL  221sta339.2018bK91I  aKravis, Irving B 0aInternational comparisons of real product and purchasing powercIrving B Kravis  aBaltimorebJohn Hopkins University Pressc1978  aix, 263p.  aUnited Nations International Comparison Project; Phase II  aProduced by the Statistical office of the United Nations and the World Bank  aIncomes; Gross national product; Purchasing Power  aHeston, Alan  aSummers, Robert