APA
Organisationfor Economic Co-operation and Development, . (1969). Development of secondary education. Paris: OECD.
Chicago
Organisationfor Economic Co-operation and Development, . 1969. Development of secondary education. Paris: OECD.
Harvard
Organisationfor Economic Co-operation and Development, . (1969). Development of secondary education. Paris: OECD.
MLA
Organisationfor Economic Co-operation and Development, . Development of secondary education. Paris: OECD. 1969.