SCIENTIFIC American frontiers in astronomy 

 - San Francisco  W.H.Freeman  1970 
 - viii, 370 p. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>716709481 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy
<br/><br/><label>Dewey Class. No.: </label>520  / SCI