Veena <br/><br/>
Bio-gas technology  a study of community bio-gas plant 

 - New Delhi  Ashish Publishing House  1986 
 - 94p. 
<br/><br/><label>ISBN: </label>817024028X 
<br/><br/><label>Subjects--Index Terms: </label>Environmental conservation  Natural energy resources 
<br/><br/><label>Universal Decimal Class. No.: </label>349.6(540):502.21  / VEE'86