Showers, Victor. <br/><br/>
The World in Figures /  

 - 1st ed /  
 - New York :   John Wiley & Sons ,   1980 
 - p.585,xii :  
<br/><br/><label>ISBN: </label>0-471-78859-7 
<br/><br/><label>Dewey Class. No.: </label>Ud  / L3