Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
BILLEDO E.,"The pre-Tertiary ophiolitic complex of Northeastern Luzon and the Polillo Group of Islands, Philippines",Journal of the Geological Society of the Philippines,,,1996,51,,95-114,https://cir.nii.ac.jp/crid/1570291226053951872,