Heilbroner,L.Robert. <br/><br/>
An inquiry into :  the human prospect. 

 - ed. 
 - new york :  Norton and company,  1991. 
 - 195  p. ;    cm. 
<br/><br/>index. 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>civilization.