APA-čujuhus (7. p.)
Organisation for Economic Co-operation and Development & ProQuest (Firm). (2006). Milan, Italy. OECD.
Chicago-čujuhus (17. p.)
Organisation for Economic Co-operation and Development juo ProQuest (Firm). Milan, Italy. Paris: OECD, 2006.
MLA-čujuhus (9. p.)
Organisation for Economic Co-operation and Development juo ProQuest (Firm). Milan, Italy. OECD, 2006.
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