Ground water.

Bibliografiset tiedot
Yhteisötekijät:	University of the Philippines (Quezon City). Science Education Center, University of the Philippines (Diliman). Science Education Center
Aineistotyyppi:	Kirja
Kieli:	English
Julkaistu:	Quezon City SEC 1982.
Sarja:	Philippine environment series. Water resources / Science Education Center, University of the Philippines [2]
Aiheet:	Water, Underground > Philippines.