The Cambridge encyclopaedia of astronomy / 
Editor-in-chief : Simon Mitton ; Foreword by Martin Ryle. 
 - London :  Jonathan Cape,  1977. 
 - 481 p. ;  27 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0244014188 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Աստղագիտություն