Riedijk, Willem. <br/><br/>
Appropriate technology for developing countries / 
W. Riedijk. 
 - 3rd ed. 
 - Delft :  Delft University Press,  1987. 
 - 356 p. :  ill. ,  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Appropriate technology--Developing countries.
<br/><br/><label>Dewey Class. No.: </label>338.927 RIE