Παραπομπή APA
Ψαχαρόπουλος, Γ. Α. (1975). Earnings and education in OECD countries. Paris : [Washington, D.C.: Organisation for Economic Co-operation and Development.
Παραπομπή Chicago StyleΨαχαρόπουλος, Γιώργος Α. Earnings and Education in OECD Countries. Paris : [Washington, D.C.: Organisation for Economic Co-operation and Development, 1975.
Παραπομπή MLAΨαχαρόπουλος, Γιώργος Α. Earnings and Education in OECD Countries. Paris : [Washington, D.C.: Organisation for Economic Co-operation and Development, 1975.
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