Unsold, Albrecht, 1905- u <br/><br/>
The New Cosmos 
/ Translated by William H. McCrea. 
 - New York  Springer-Verlag  1969. 
 - xii, 373 p. : ill. ; 23 cm. 
 - Heidelberg science library v.5/6 .
<br/><br/>p. 345-353. 
<br/><br/><label>ISBN: </label>QB43.U513 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy