Dunn, P.D.
Appropriate technology : technology with a human face - London Macmillan 1978 - xi, 220p. : ill., photos., tables
0333242076
62:001.8 / D8
Appropriate technology : technology with a human face - London Macmillan 1978 - xi, 220p. : ill., photos., tables
0333242076
62:001.8 / D8