Sagan, Carl,  1934-1996. <br/><br/>
The dragons of Eden :  speculations on the evaluation of human intelligence / 
Carl Sagan 
 - New York :  Ballantine Books,  1977 
 - 271 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0345346297 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Intellect.<br/>Genetic psychology.
<br/><br/><label>LC Class. No.: </label>BF 431  / S129d 1977