Tough, Allen <br/><br/>
Crucial questions about the future 

 - London  University Press of America  1991 
 - xi, 133p 
<br/><br/><label>ISBN: </label>0819182753 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Civilization, Modern Forecasting - 21st century
<br/><br/><label>Dewey Class. No.: </label>303.4  / TOU