APA (7e ed.) Bronvermelding
Organisation for Economic Co-operation and Development & ProQuest (Firm). (2007). Madrid, Spain. OECD.
Chicago (17e ed.) Bronvermelding
Organisation for Economic Co-operation and Development en ProQuest (Firm). Madrid, Spain. Paris: OECD, 2007.
MLA (9e ed.) Bronvermelding
Organisation for Economic Co-operation and Development en ProQuest (Firm). Madrid, Spain. OECD, 2007.
Let op: Deze citaties zijn niet altijd 100% accuraat.