Soft energy notes 

 - Commonwealth Secretariat  London  1979 
 - 90p. 
 - Soft energy path studies Solar energy Water heating 
<br/><br/><label>Nat. Bib. No.: </label>3511 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>620.91 SOF 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Energy
<br/><br/><label>Universal Decimal Class. No.: </label>620.91