Phivolcs, nahirapang magpalikas ng mga tao

Bibliographic Details
Published in:	Kabayan (07 Jul. 1999), 1+
Main Author:	Calleja, Danny O.
Other Authors:	Torres, Ma. Mechell I.
Format:	Article
Language:	Filipino
Published:	1999
Subjects:	Mayon Volcano (Albay) > Eruptions, 1999 Philippine Institute of Volcanology and Seismology