Castillo, R. (2013). Melatonin, aging and cancer. IN Medical files [column]. Philippine Daily Inquirer.
Citazione stile Chigago Style (17a edizione)Castillo, Rafael. "Melatonin, Aging and Cancer. IN Medical Files [column]." Philippine Daily Inquirer 2013.
Citatione MLA (9a ed.)Castillo, Rafael. "Melatonin, Aging and Cancer. IN Medical Files [column]." Philippine Daily Inquirer, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.