Παραπομπή APA
Koch, D., Jol, A., & European Environment Agency. (2000). Air emissions: Annual topic update 1999. Luxembourg: Office for Official Publications of the European Communities.
Παραπομπή Chicago StyleKoch, Dietmar., Andre Jol, and European Environment Agency. Air Emissions: Annual Topic Update 1999. Luxembourg: Office for Official Publications of the European Communities, 2000.
Παραπομπή MLAKoch, Dietmar., Andre Jol, and European Environment Agency. Air Emissions: Annual Topic Update 1999. Luxembourg: Office for Official Publications of the European Communities, 2000.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.