Organisation for Economic Co-operation and Development & International Energy Agency. (2000). Energy policies of IEA countries: Portugal 2000 review. OECD.
Cita Chicago (17th ed.)Organisation for Economic Co-operation and Development i International Energy Agency. Energy Policies of IEA Countries: Portugal 2000 Review. Paris: OECD, 2000.
Cita MLA (8th ed.)Organisation for Economic Co-operation and Development i International Energy Agency. Energy Policies of IEA Countries: Portugal 2000 Review. OECD, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.