Tohutoro APA (7th ed.)

International Energy Agency, Organisation for Economic Co-operation and Development, & ProQuest (Firm). (2009). Energy policies of IEA countries: Portugal 2009 review. OECD/IEA.

Tohutoru Kātū Chicago (17th ed.)

International Energy Agency, Organisation for Economic Co-operation and Development, me ProQuest (Firm). Energy Policies of IEA Countries: Portugal 2009 Review. Paris: OECD/IEA, 2009.

Tohutoro MLA (9th ed.)

International Energy Agency, et al. Energy Policies of IEA Countries: Portugal 2009 Review. OECD/IEA, 2009.