APA-ийн эшлэл(7 дахь хэвлэлт)

Organisation for Economic Co-operation and Development. (1968). Oecd economic outlook: 4. OECD Publishing.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Organisation for Economic Co-operation and Development. Oecd Economic Outlook: 4. Paris, France: OECD Publishing, 1968.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Organisation for Economic Co-operation and Development. Oecd Economic Outlook: 4. OECD Publishing, 1968.