World geography / 
Duka, Cecilio 
 - rev ed. 
 - Manila :  Rex Book Store, Inc.,  2007. 
 - ix, 163 p.: ill.; 22.1 cm. 
<br/><br/>Includes references, index 
<br/><br/><label>ISBN: </label>9789712346965 
<br/><br/><label>Dewey Class. No.: </label>Fil 910 D877 2007