Space Observatories 

 - Dordrecht:   D. Reidel Publishing Company,   1970 
 - 120p.  
 - Astrophysics and space science library  21 .
<br/><br/><label>ISBN: </label>9789401033206 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science 
<br/><br/><label>Subjects--Index Terms: </label>Astrophysics  
<br/><br/><label>Universal Decimal Class. No.: </label>629.78:522.1  / L0