APA (7th ed.) Citation

European Commission. Directorate-General for Energy. (1999). Blue book on geothermal resources. Office for Official Publications of the European Communities.

Chicago Style (17th ed.) Citation

European Commission. Directorate-General for Energy. Blue Book on Geothermal Resources. Luxembourg: Office for Official Publications of the European Communities, 1999.

MLA (9th ed.) Citation

European Commission. Directorate-General for Energy. Blue Book on Geothermal Resources. Office for Official Publications of the European Communities, 1999.

Warning: These citations may not always be 100% accurate.