Title: Die Idee der Nachhaltigkeit im Verständnis der Vereinten Nationen
Subjects: Sustainable development, United Nations Conference on Environment and Development (1992 : Rio de Janeiro, Brazil) (uri) http://id.loc.gov/authorities/names/n91110180 (uri) http://viaf.org/viaf/sourceID/LC|n91110180, United Nations. Commission on Sustainable Development