Παραπομπή APA
European Commission. (1999). Exploitation of hydrocarbon resources: New solutions in energy supply. Luxembourg: Office for Official Publications of the European Communities.
Παραπομπή Chicago StyleEuropean Commission. Exploitation of Hydrocarbon Resources: New Solutions in Energy Supply. Luxembourg: Office for Official Publications of the European Communities, 1999.
Παραπομπή MLAEuropean Commission. Exploitation of Hydrocarbon Resources: New Solutions in Energy Supply. Luxembourg: Office for Official Publications of the European Communities, 1999.
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