Organisation for Economic Co-operation and Development. (1968). OECD economic outlook. OECD.
Chicago-čujuhus (17. p.)Organisation for Economic Co-operation and Development. OECD Economic Outlook. Paris: OECD, 1968.
MLA-čujuhus (9. p.)Organisation for Economic Co-operation and Development. OECD Economic Outlook. OECD, 1968.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.