APA (7e ed.) Bronvermelding
Organisation for Economic Co-operation and Development & ProQuest (Firm). (2011). Portugal 2011. OCDE.
Chicago (17e ed.) Bronvermelding
Organisation for Economic Co-operation and Development en ProQuest (Firm). Portugal 2011. [Paris]: OCDE, 2011.
MLA (9e ed.) Bronvermelding
Organisation for Economic Co-operation and Development en ProQuest (Firm). Portugal 2011. OCDE, 2011.
Let op: Deze citaties zijn niet altijd 100% accuraat.