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

 - Ashish Punlishing House, New Delhi  1986 
 - 94 
<br/><br/><label>ISBN: </label>81-7024-028-X 
<br/><br/><label>Dewey Class. No.: </label>662.8 Vee