APA aipamena

Τρυφωνόπουλος, Σ. Ι. (1973). Attitudes toward formal and adult education: An investigation among greeks. Athens: National Centre of Social Research.

Chicago Style aipamena

Τρυφωνόπουλος, Σπύρος Ι. Attitudes Toward Formal and Adult Education: An Investigation Among Greeks. Athens: National Centre of Social Research, 1973.

MLA aipamena

Τρυφωνόπουλος, Σπύρος Ι. Attitudes Toward Formal and Adult Education: An Investigation Among Greeks. Athens: National Centre of Social Research, 1973.