00659nam a22002057a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001700102110001100119245014500130260002700275300001100302490005200313650003600365830005200401CHAP20220817042458.0971013s1964            r     00010     d  a45880  a46852  a50993  cCHAP  a300bU5 1964  aUNESCO  aInternational organization in the social sciences; a summary description of the structure and activities of non-governmental organization...  aParis :bUNESCO,c1964  a147 p.  aReports and papers in the social sciencesv; 2114aCiencias socialesxDirectorios.0 aReports and papers in the social sciencesv; 21