Commission of the European Communities. Directorate-General for Energy. (1999). Energy in Europe: Economic foundations for energy policy. Office for Official Publications of the European Communities.
Citação do estilo Chicago (17ª ed.)Commission of the European Communities. Directorate-General for Energy. Energy in Europe: Economic Foundations for Energy Policy. Luxembourg: Office for Official Publications of the European Communities, 1999.
Citação MLA (9ª ed.)Commission of the European Communities. Directorate-General for Energy. Energy in Europe: Economic Foundations for Energy Policy. Office for Official Publications of the European Communities, 1999.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.