Rau, Hans,  1881- <br/><br/>
Solar energy / 
Translated by Maxim Schur ; Edited and revised by D. J. Duffin. 
 - New York :  Macmillan,  [1964]. 
 - 171 p.  illus., ports. ;  21 cm. 
<br/><br/> Translation of Sonnenenergie. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Solar energy