Dunn, P. D.  1927- <br/><br/>
Appropriate technology  technology with a human face 
P.D. Dunn 
 - London [etc.]  Macmillan  1978 
 - xi, 220 p.  ill.  23cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology--Developing countries
<br/><br/><label>Dewey Class. No.: </label>609  / .172  / 4