Twidell, John. <br/><br/>
Renewable energy resources / 
John Twidell, Tony Weir. 
 - 2nd ed. 
 - [S.l.] :  Taylor & Francis,  2007 
 - 624 p. ;  23 cm. 
<br/><br/><label>ISBN: </label>0419253300 9780419253303 
<br/><br/><label>Dewey Class. No.: </label>621.042