Biogas technology, transfer and diffusion. 

 - London :  Elsevier,  1984. 
<br/><br/> 720 
<br/><br/><label>ISBN: </label>1851660903 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biogas -- Congrsses.--Biogas -- Congrsses.