Energy from biological processes  Technical and env    

 - Cambridge  Ballinger Publishing           1978 
 - vii,234p.  cm. 
 - Ballinger energy series .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography
<br/><br/><label>Dewey Class. No.: </label>U672(F558).73.N7, L8