author = { UNEP },

title = { Environmental data report },

publisher = {Blackwell},

isbn = {0956-9324},

keywords = { Umweltstatistik , Welt , Amtsdruckschrift , Statistik , Zeitschrift , Verzeichnis },

year = {1987-1993},

address = { Oxford [u.a.] },

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