Ridpath, Ian <br/><br/>
A comet called Halley 
Ian Ridpath and Terence Murtagh. 
 - Cambridge [Cambridgeshire]  New York  Cambridge University Press  1985. 
 - 48 p.  ill. (some col.)  25 cm. 
<br/><br/><label>ISBN: </label>0521312825 (pbk.) 
<br/><br/><label>LCCN: </label>85018981  
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Halley's comet
<br/><br/><label>LC Class. No.: </label>QB723.H2  / R53 1985 
<br/><br/><label>Dewey Class. No.: </label>523.6/4