TY - JOUR T1 - Mayon Volcano explodes twice JF - Philippine Daily Inquirer A1 - Nasol, Rey A2 - Belen, Job LA - English YR - 1999 UL - https://tuklas.up.edu.ph/Record/IPN-00000021737 KW - Mayon Volcano (Albay) : Eruptions, 1999 ER -