World geography 
Duka, Cecilio D. 
 - rev. ed. 
 -  REX Book Store,  2007 
 - ix, 163 p. 
<br/><br/>
<br/><br/><label>ISBN: </label>978-9-71234696-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography.
<br/><br/><label>Dewey Class. No.: </label>F 910 D877 2007