Biogas :  technology and principles / 
Brad Hill, editor 
 - New York :  NY Research Press,  2015 
 - vii, 412 p. :  ill. (some col.) ;  24 cm. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>9781632380616 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biogas