3 treff
Tinker, tiller, technical change : technologies from the people
edited by Matthew Gamser, Helen Appleton ...
Bok Engelsk 1990
Mobilizing appropriate technology : papers on planning aid programmes
Vesla Vetlesen ... [et al.] ; edited by M...
Bok Engelsk 1988
Power from the people : innovation, user participation, and forest energy development
Gamser, Matthew S.
Bok Engelsk 1988