Rai, G D <br/><br/>
Non-conventional energy sources 

 - 3 rev. 
 - Delhi  Khanna  1994 
 - xvii, 840p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical energy sources<br/>Energy from biomass<br/>Energy sources -- Solar energy<br/>Geothermal energy<br/>Wind energy