Παραπομπή APA

European Commission. (1999). Renewable energy systems: New solutions in energy supply : overview 1995-1998. Luxembourg: Office for Official Publications of the European Communities.

Παραπομπή Chicago Style

European Commission. Renewable Energy Systems: New Solutions in Energy Supply : Overview 1995-1998. Luxembourg: Office for Official Publications of the European Communities, 1999.

Παραπομπή MLA

European Commission. Renewable Energy Systems: New Solutions in Energy Supply : Overview 1995-1998. Luxembourg: Office for Official Publications of the European Communities, 1999.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.