@book{ Solr-778571, title = {Education for sustainability : becoming naturally smart [E-Book]}, author = {Clarke, Paul}, editor = {Clarke, Paul}, address = {London}, publisher = {Routledge}, year = {2012}, pages = {137}, note = {englisch}, url = {https://ebookcentral.proquest.com/lib/fz/detail.action?docID=978926} }