(2004). Geologist urges govt to draw up hazard map. Philippine Daily Inquirer.
Chicago Style aipamena"Geologist Urges Govt to Draw Up Hazard Map." Philippine Daily Inquirer 2004.
MLA aipamena"Geologist Urges Govt to Draw Up Hazard Map." Philippine Daily Inquirer, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.