(1997). Umweltstatistik 1996 =: Environment statistics 1996 = Statistiques de l' environnement 1996. Luxembourg: Office for Official Publications of the European Communities.
Παραπομπή Chicago StyleUmweltstatistik 1996 =: Environment Statistics 1996 = Statistiques De L' Environnement 1996. Luxembourg: Office for Official Publications of the European Communities, 1997.
Παραπομπή MLAUmweltstatistik 1996 =: Environment Statistics 1996 = Statistiques De L' Environnement 1996. Luxembourg: Office for Official Publications of the European Communities, 1997.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.