Appropriate technology 

 - Geneva:  World Council of Churches,  1974- 
 - v. : ill. 
 - CCPD documents ; 5, 16 .
<br/><br/> On cover : a service of the development education research and documentation program of CCPD 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Appropriate technology--Developing countries