European Commission. Directorate-General for Energy. (1998). Thermie: European oil and gas technology projects : status report. Office for Official Publications of the European Communities.
Cita Chicago (17th ed.)European Commission. Directorate-General for Energy. Thermie: European Oil and Gas Technology Projects : Status Report. Luxembourg: Office for Official Publications of the European Communities, 1998.
Cita MLA (8th ed.)European Commission. Directorate-General for Energy. Thermie: European Oil and Gas Technology Projects : Status Report. Office for Official Publications of the European Communities, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.