Appropriate technology technology with a human face
Dunn, P. D. 1927-
Appropriate technology technology with a human face P.D. Dunn - London [etc.] Macmillan 1978 - xi, 220 p. ill. 23cm
Technology--Developing countries
609 / .172 / 4
Appropriate technology technology with a human face P.D. Dunn - London [etc.] Macmillan 1978 - xi, 220 p. ill. 23cm
Technology--Developing countries
609 / .172 / 4