00334nam a2200097Ia 4500008004100000082002300041100005800064245006800122260003200190300001400222260227b        |||||||| |||| 00| 0 eng d  a303.44098bUn58.SC  aUnited Nations. Economic Commission for Latin America  aSocial change and social development policy in Latin Americab/  aNew York:bThe Auth.,c1970  avi, 318p.