Ley, Willey,  1906- <br/><br/>
Watchers of the skies :  an informal history of astronomy from Babylon to the space age / 
Willey, Ley 
 - London :  Sidgwick & Jackson,  c1964 
 - xiv, 529 p. :  ill. ;  20 cm. 
<br/><br/> Includes index 
<br/><br/>Bibliography: p. 518-520 
<br/><br/><label>ISBN: </label> Rs. 45.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy--History<br/>Astronomy--Popular works
<br/><br/><label>Dewey Class. No.: </label>520.9