National Symposium on Biogas technology and usage 
/ Indian Agricultural Research Institute 
 - New Delhi:   Indian Agricultural Research Institute,   1979 
 - 61p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical technology--Bio gas
<br/><br/><label>Universal Decimal Class. No.: </label>I 662.767.2.004(082.2)  / L9