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Παραπομπή σε μορφή Chicago (17η εκδ.)European Commission. Directorate-General for Energy. Thermie-Altener Renewable Energy Report. Luxembourg: Office for Official Publications of the European Communities, 1998.
Παραπομπή σε μορφή MLA (8th εκδ.)European Commission. Directorate-General for Energy. Thermie-Altener Renewable Energy Report. Office for Official Publications of the European Communities, 1998.
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