Appropriate technology :  Choice and development / 
Ed. by Mathew j. betz, Pat mcgowan and rolf t. wingand 
 - 164 páginas 
 - Duke press policy studies .
<br/><br/><label>ISBN: </label>0822305739 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tecnología apropiada
<br/><br/><label>LC Class. No.: </label>T185  / A66