author = { Buchwald, Konrad },

title = { Umweltschutz Grundlagen und Praxis },

publisher = {Economica-Verl.},

keywords = { Environmental protection , Environmental policy , Umweltschutz },

year = {1993-},

address = { Bonn },

url = { http://slubdd.de/katalog?TN_libero_mab2 }