Τρυφωνόπουλος, Σ. Ι. (1973). Attitudes toward formal and adult education: An investigation among greeks. Athens: National Centre of Social Research.
Chicago-стиль цитированияΤρυφωνόπουλος, Σπύρος Ι. Attitudes Toward Formal and Adult Education: An Investigation Among Greeks. Athens: National Centre of Social Research, 1973.
MLA-цитированиеΤρυφωνόπουλος, Σπύρος Ι. Attitudes Toward Formal and Adult Education: An Investigation Among Greeks. Athens: National Centre of Social Research, 1973.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.