International Energy Agency, Organisation for Economic Co-operation and Development, & ProQuest (Firm). (2009). Oil information 2009: With 2008 data = Donnees sur le petrole. OECD : International Energy Agency.
Chicago-viite (17. p.)International Energy Agency, Organisation for Economic Co-operation and Development, ja ProQuest (Firm). Oil Information 2009: With 2008 Data = Donnees Sur Le Petrole. Paris: OECD : International Energy Agency, 2009.
MLA-viite (9. p.)International Energy Agency, et al. Oil Information 2009: With 2008 Data = Donnees Sur Le Petrole. OECD : International Energy Agency, 2009.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.