Interdisciplinary Projectgroup of Appropriate Technology -Berlin, DE

Berlin, D.E.Interdisci, 1979. Potentials of appropriate technology : a report on ideas, research and actions of IPAT - Interdisciplinary Projectgroup of Appropriate Technology : thinking and acting in ecological systems using regenerative sources of energy, (TUB-Dokumentation Forschung Heft 3) Berlin, Germany: Technische Universitaet Berlin.