Παραπομπή APA
Koch, D., & European Environment Agency. (2000). Air emissions: Annual topic update 1998. Luxembourg: Office for Official Publications of the European Communities.
Παραπομπή Chicago StyleKoch, Dietmar., and European Environment Agency. Air Emissions: Annual Topic Update 1998. Luxembourg: Office for Official Publications of the European Communities, 2000.
Παραπομπή MLAKoch, Dietmar., and European Environment Agency. Air Emissions: Annual Topic Update 1998. Luxembourg: Office for Official Publications of the European Communities, 2000.
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