Παραπομπή APA
Krynitz, M., Bergstrom, R., & European Environment Agency. (1999). Land cover: Annual topic update 1998. Luxembourg: Office for Official Publications of the European Communities.
Παραπομπή Chicago StyleKrynitz, Martin., Rolf Bergstrom, and European Environment Agency. Land Cover: Annual Topic Update 1998. Luxembourg: Office for Official Publications of the European Communities, 1999.
Παραπομπή MLAKrynitz, Martin., Rolf Bergstrom, and European Environment Agency. Land Cover: Annual Topic Update 1998. Luxembourg: Office for Official Publications of the European Communities, 1999.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.