Buch(gedruckt)#119742 Versionen verfügbarInternational action, achievements and problems: proceedings of the 3. Intern. Parliamentary Conf. on the EnvironmentIn: Beiträge zur UmweltgestaltungIn: A 29International Parliamentary Conference on the Environment 3 1974 NairobiInternational Parliamentary Conference on the Environment 3 1974 NairobiBestellen über Verfügbarkeit