APA-ийн эшлэл(7 дахь хэвлэлт)
Organization for Economic Cooperation and Development (OECD). (1969). Development of secondary education: Trends and implications.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
Organization for Economic Cooperation and Development (OECD). Development of Secondary Education: Trends and Implications. 1969.
MLA -ийн эшлэл (9 дэх хэвлэлт)
Organization for Economic Cooperation and Development (OECD). Development of Secondary Education: Trends and Implications. 1969.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.