Organisation for Economic Co-operation and Development & International Energy Agency. (1997). Energy policies of IEA countries. OECD.
Cita Chicago (17th ed.)Organisation for Economic Co-operation and Development i International Energy Agency. Energy Policies of IEA Countries. Paris: OECD, 1997.
Cita MLA (8th ed.)Organisation for Economic Co-operation and Development i International Energy Agency. Energy Policies of IEA Countries. OECD, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.