Copperfield, David <br/><br/>
The sun and wheels power system  an introduction to solar-electric and dual battery systems 
by David Copperfield 
 - Rough and Read  Well-Being Productions  c1982 
 - 11 p 
 - Elecatrical independence booklets  1 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Solar energy<br/>Electric power systems<br/>Storage batteries