Caldez, E. (2001). 28 Cagayan towns listed as hot spots. Philippine Daily Inquirer.
Citazione stile Chigago Style (17a edizione)Caldez, Estanislao. "28 Cagayan Towns Listed as Hot Spots." Philippine Daily Inquirer 2001.
Citatione MLA (9a ed.)Caldez, Estanislao. "28 Cagayan Towns Listed as Hot Spots." Philippine Daily Inquirer, 2001.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.