Nações Unidas., Educational, Scientific and Cultural Organization Development of industrial-scale manufacturing of materials and equipment adapted to educational needs in the third world : analysis of the problem and proposals for action / UNESCO

Development of industrial-scale manufacturing of materials and equipment adapted to educational needs in the third world : analysis of the problem and proposals for action / UNESCO . - Paris : UNESCO, 1980 . - 23, 5, 4 p. 30 cm . - (Division of structures, content, methods and techniques of education)
371.6