Gribbin,John. <br/><br/>
Future world. 

 - ed. 
 - new york :  plenum press,  1979. 
 - 244  p. ;    cm. 
<br/><br/>index. 
<br/><br/><label>ISBN: </label>0306407809 :  $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>civilization.