Halacy, Daniel Stephen <br/><br/>
Earth, water, wind and sun :  our energy alternatives / 
(by) D.S. Halacy, Jr. 
 - New York (etc.) ;  London :  Harper and Row,  1977 
<br/><br/>Bibl.: p.179-180. - Index 
<br/><br/><label>ISBN: </label>006011777X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Renewable energy sources