UNESCO Institute for Lifelong Learning. (2009). Global report on adult learning and education. UNESCO Institute for Lifelonf Learning.
Παραπομπή σε μορφή Chicago (17η εκδ.)UNESCO Institute for Lifelong Learning. Global Report on Adult Learning and Education. Feldbrunnestrae: UNESCO Institute for Lifelonf Learning, 2009.
Παραπομπή σε μορφή MLA (8th εκδ.)UNESCO Institute for Lifelong Learning. Global Report on Adult Learning and Education. UNESCO Institute for Lifelonf Learning, 2009.
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