APA

Organisation For Economic Co-Operation And Development, . (1972). Classification of educational systems in OECD member countries. Paris: Organisation for Economic Co-operation and Development.

Chicago

Organisation For Economic Co-Operation And Development, . 1972. Classification of educational systems in OECD member countries. Paris: Organisation for Economic Co-operation and Development.

Harvard

Organisation For Economic Co-Operation And Development, . (1972). Classification of educational systems in OECD member countries. Paris: Organisation for Economic Co-operation and Development.

MLA

Organisation For Economic Co-Operation And Development, . Classification of educational systems in OECD member countries. Paris: Organisation for Economic Co-operation and Development. 1972.