Não informado. (1967). OECD Economic Outlook. Organization for Economic Co-operation and Development.
Chicago-viite (17. p.)Não informado. OECD Economic Outlook. Paris: Organization for Economic Co-operation and Development, 1967.
MLA-viite (8. p.)Não informado. OECD Economic Outlook. Organization for Economic Co-operation and Development, 1967.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.