APA
(1972). Classification of educational systems in OECD member countries. Paris: Organization for Economic Co-Operation and Development.
Chicago
1972. Classification of educational systems in OECD member countries. Paris: Organization for Economic Co-Operation and Development.
Harvard
(1972). Classification of educational systems in OECD member countries. Paris: Organization for Economic Co-Operation and Development.
MLA
Classification of educational systems in OECD member countries. Paris: Organization for Economic Co-Operation and Development. 1972.
