Advances in astronomy and astrophysics 

 - New York:   Academic Press,   1970 
 - xi, 293p. 
<br/><br/> Vol. 7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy
<br/><br/><label>Universal Decimal Class. No.: </label>52+523.03(05)