author = { Grove, Noel AND Littlehales, Bates },

title = { Wild lands for wildlife America's national refuges },

publisher = {National Geographic Society},

isbn = {0870444778},

keywords = { Nordamerika , Nationalpark },

year = {1984},

address = { Washington, D.C. },

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