Citazione Stile APA (7a Edizione)

(2000). Energy policies of IEA countries: Portugal 2000 review. International Energy Agency.

Citazione stile Chigago Style (17a edizione)

Energy Policies of IEA Countries: Portugal 2000 Review. Paris, Cedex, France: International Energy Agency, 2000.

Citatione MLA (9a ed.)

Energy Policies of IEA Countries: Portugal 2000 Review. International Energy Agency, 2000.