Appropriate technology :
Dunn, P. D. 1927-
Appropriate technology : technology with a human face / P. D. Dunn. - 1st. ed. - London Macmillan education limited 1979, c1978. - ix, 220 p. : ill. ; 23 cm.
Includes bibliographical references and index.
0333242076
78018246
Technology.
Developing countries--Technology.
T49.5 / .D86 1979
631DUN
Appropriate technology : technology with a human face / P. D. Dunn. - 1st. ed. - London Macmillan education limited 1979, c1978. - ix, 220 p. : ill. ; 23 cm.
Includes bibliographical references and index.
0333242076
78018246
Technology.
Developing countries--Technology.
T49.5 / .D86 1979
631DUN