Ditan, Carolina Desamero. <br/><br/>
Earth sciences / 
Carolina Desamero-Ditan. 
 - Mandaluyong City :  National Book Store. 
 - 168 pages ;  23 cm. 
<br/><br/><label>ISBN: </label>9710871471 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth science.