Biogas technology 

 - Ludhiana:   USG Publishers & Distributors,   1983 
 - 165p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical technology
<br/><br/><label>Subjects--Index Terms: </label>Biogas 
<br/><br/><label>Universal Decimal Class. No.: </label>662.767.2(082.2)  / M3