Não informado. (1950). Education: Tribune libre d information et de discussion pedagogiques. Universite de Liege, Institut des Sciences de l' Education.
Chicago Style (17. basım) AtıfNão informado. Education: Tribune Libre D Information Et De Discussion Pedagogiques. Bruxelles: Universite de Liege, Institut des Sciences de l' Education, 1950.
MLA (8th ed.) AtıfNão informado. Education: Tribune Libre D Information Et De Discussion Pedagogiques. Universite de Liege, Institut des Sciences de l' Education, 1950.
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