International Bureau of Education, Geneva. (1971). Linkages between formal and nonformal education. Unesco-IBE.
Citace podle Chicago (17th ed.)International Bureau of Education, Geneva. Linkages Between Formal and Nonformal Education. Paris: Unesco-IBE, 1971.
Citace podle MLA (9th ed.)International Bureau of Education, Geneva. Linkages Between Formal and Nonformal Education. Unesco-IBE, 1971.
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