Kopal Z Ed. <br/><br/>
Advances in astronomy and astrophysics 

 -  1971 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>72139 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy
<br/><br/><label>Dewey Class. No.: </label>B9vn1:N62, L1