IAN RIDPATH <br/><br/>
A COMET CALLED HALLEY 

 - LONDON  CAMBRIDGE UNIVERSITY PRESS  1985 
 -  48P 
<br/><br/><label>Subjects--Topical Terms: </label><br/><br/>
<br/><br/><label>Dewey Class. No.: </label>523.6/RID/COM