@book{31356, author = {Wandrey, Guido and Kessel, Carola ˜vonœ and Ravensburger Buchverlag Otto Maier GmbH}, title = {Wir schützen unsere Umwelt}, publisher = {Ravensburger}, year = {[2018]}, series = {Wieso? Weshalb? Warum?}, address = {Ravensburg}, edition = {[1. Auflage]}, url = {http://deposit.dnb.de/cgi-bin/dokserv?id=b179085c4bb843f4b7d3e7d26b5b6a3e&prov=M&dok_var=1&dok_ext=htm} }