Extraterrestrias: Science and alien intelligence 

 - Cambridge  Cambridge University Press  1987 
 - x,278p. 
<br/><br/><label>ISBN: </label> UKP 8.50 
<br/><br/><label>Source: </label> UKP 8.50 
<br/><br/><label>Dewey Class. No.: </label>574.999 EXT