Proceedings of the Workshop on Biogas and other Rural Energy Resources and the Roving Seminar on Rural Energy Development. 

 - New York :  United Nations,  1979. 
 - 152 p. 
 - Energy resources development series ; no. 19 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rural development.<br/>Power resources.<br/>Biogas.<br/>Renewable energy sources.