Reyes, R. S. (1997). Ayala Foundation to use IT in study of Philippine history. Manila Bulletin.
Citazione stile Chigago Style (17a edizione)Reyes, Riz S. "Ayala Foundation to Use IT in Study of Philippine History." Manila Bulletin 1997.
Citatione MLA (9a ed.)Reyes, Riz S. "Ayala Foundation to Use IT in Study of Philippine History." Manila Bulletin, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.