APA-viite (7. p.)
Organisation for Economic Co-operation and Development & ProQuest (Firm). (2011). Basque Country, Spain 2011. OECD Pub..
Chicago-viite (17. p.)
Organisation for Economic Co-operation and Development ja ProQuest (Firm). Basque Country, Spain 2011. [Paris]: OECD Pub., 2011.
MLA-viite (9. p.)
Organisation for Economic Co-operation and Development ja ProQuest (Firm). Basque Country, Spain 2011. OECD Pub., 2011.
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