Encyclopedia of the World and its People Vol-18:Pet-Rai /  

 - Reprinted 1980 /  
 - Sydney :   Bays Books Pty Ltd. 
 - p.1633-1728 :  
<br/><br/><label>ISBN: </label>85835-220-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth Science
<br/><br/><label>Dewey Class. No.: </label>UK  / L8.18