Asimov Isaac <br/><br/>
El cometa Halley / 
Isaac Asimov ; translated by Antonio Prometeo Moya Valls. 
 - 3ra ed. 
 - Barcelona:  Plaza & Janes Editores,  1986. 
 - 149 p. :  ill. ;  20 cm. 
<br/><br/> Translation of : Asimov's Guide to Halley's comet.  Includes index. 
<br/><br/><label>ISBN: </label>8401803209 
<br/><br/><label>LCCN: </label>92000443  
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Halley's comet
<br/><br/><label>LC Class. No.: </label>QB723.H2  / A83 1985 
<br/><br/><label>Dewey Class. No.: </label>523.6/4