Breiting, S. (2005). Quality criteria for ESD-Schools: Guidelines to enhance the quality of education for sustainable development. Vienna, Austria.
Chicago ZitierstilBreiting, Soren. Quality Criteria for ESD-Schools: Guidelines to Enhance the Quality of Education for Sustainable Development. Vienna, Austria, 2005.
MLA ZitierstilBreiting, Soren. Quality Criteria for ESD-Schools: Guidelines to Enhance the Quality of Education for Sustainable Development. Vienna, Austria, 2005.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.