Felicitas R. Manacsa.etal <br/><br/>
Heograpiya ng Daigdig 

 - Katha Publishing Co. Inc. Quezon City  Katha Publishing Co. Inc.  1990 
 - 120 
<br/><br/><label>ISBN: </label>9711500817 
<br/><br/><label>Dewey Class. No.: </label>F910M266hc1990