Biogas  what it is, how it is made, how to use it  

 - Rome, Italy  Food and Agriculture Organization of the United Nations  1984  
 - 52p.  ill.  21cm 
 - Better farming series  (Food and Agriculture Organization of the United Nations)  no.31 Economic and social development series  (Food and Agriculture Organization of the United Nations)  no.3/31 .
<br/><br/><label>ISBN: </label>9251012903 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biogas.
<br/><br/><label>LC Class. No.: </label>S517