Singer,Hans  x <br/><br/>
Technologies for basic needs  x 

 - x 
 - New Delhi  Concept  1979 
 - x,158 
<br/><br/>x 
<br/><br/><label>ISBN: </label>x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labour Economics Third world-Economic Conditions 
<br/><br/><label>Dewey Class. No.: </label>338.91724/S617t