Organisation for Economic Co-operation and Development & International Energy Agency. (1999). Energy policies of IEA countries. OCED.
Chicago-viite (17. p.)Organisation for Economic Co-operation and Development ja International Energy Agency. Energy Policies of IEA Countries. Paris: OCED, 1999.
MLA-viite (8. p.)Organisation for Economic Co-operation and Development ja International Energy Agency. Energy Policies of IEA Countries. OCED, 1999.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.