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Provisional agenda item 8: textbooks and instructional materials; Inter-American Development Bank loan proposal
(Washington, D.C; Pan American Sanitary Organization, 1978)
CE81.R1: programa de libros de texto
(Washington, D.C; Oficina Sanitaria Panamericana, 1978)
CE81.R1: textbooks program
(Washington, D.C; Pan American Sanitary Bureau, 1978)