Heidmann, Jean  . <br/><br/>
Extraterrestrail intelligence /  
by Jean Heidmann. 
 - Cambridge :   Cambridge University Press ,   1997 
 - xxiii, 243p :  
<br/><br/><label>ISBN: </label>0-521-58563-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Planetary system
<br/><br/><label>Dewey Class. No.: </label>B94  / N7