Παραπομπή APA

Commission of the European Communities. (1999). Energy in Europe: European Union, energy outlook to 2020. Luxembourg: Office for Official Publications of the European Communities.

Παραπομπή Chicago Style

Commission of the European Communities. Energy in Europe: European Union, Energy Outlook to 2020. Luxembourg: Office for Official Publications of the European Communities, 1999.

Παραπομπή MLA

Commission of the European Communities. Energy in Europe: European Union, Energy Outlook to 2020. Luxembourg: Office for Official Publications of the European Communities, 1999.

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