00636cam a22002171 4500 pa 58000065 DLC 20260227111854.0 820127s1958 dcu 000 0 eng pa 58000065 (OCoLC)8098951 DLC OrU DLC premarc Z5811 .P2 Pan American Union. Division of Education. Bibliografía de la educación primaria en América. Washington, [1958] 85 p. 27 cm. Education, Primary Bibliography. Educational law and legislation America Bibliography. 51379 51379