author = { Hermann Haack Geographisch-Kartographische Anstalt Kramm, Hans-Joachim },

title = { Der Bezirk Potsdam geographische Exkursionen },

edition = { 1. Aufl. } ,

publisher = {Haack},

year = {1971},

booktitle = {Geographische Bausteine ; N.R., 6},

address = { Gotha },

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