Bergwall, Bruce <br/><br/>
Solar energy explained  [videorecording] / 
produced by Bruce Bergwall 
 - [S.l.] :  Thomson Delmar Learning,  1998 
 - 1 videocassette (VHS) (10min.) :  sd., col. ;  1/2 in. 
<br/><br/> This video is an introduction to the basic concepts of solar energy 
<br/><br/><label>ISBN: </label> RM699.28 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Solar energy