New frontiers in astronomy / 
with introductions by Owen Gingerich 
 - San Francisco :  W. H. Freeman,  1975 
 - 369 p. :  ill. ;  30 cm. 
<br/><br/> Published in 1970 under title: Frontiers in astronomy. 
<br/><br/>Bibliography: p. 357-367. 
<br/><br/><label>ISBN: </label>0716705206 
<br/><br/><label>LCCN: </label>75-008902 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy