organization for economic co-operation and development. (1997). Education at a glance oecd indicators. les indicateurs.
Chicago Style (17. basım) Atıforganization for economic co-operation and development. Education at a Glance Oecd Indicators. les indicateurs, 1997.
MLA (9th ed.) Atıforganization for economic co-operation and development. Education at a Glance Oecd Indicators. les indicateurs, 1997.