Garvey, Gerald <br/><br/>
Energy, ecology, economy 

 - New York:  The Macmillan Press Ltd,  1972. 
 - 235p. 
<br/><br/> includes index 
<br/><br/><label>ISBN: </label>333174801 
<br/><br/><label>Dewey Class. No.: </label>301.3