Protacio, A. L. (1997). Drugs that can be taken during pregnancy. IN Doctor's corner [column]. Philippine Daily Inquirer.
Citazione stile Chigago Style (17a edizione)Protacio, Antonio L. "Drugs That Can Be Taken During Pregnancy. IN Doctor's Corner [column]." Philippine Daily Inquirer 1997.
Citatione MLA (9a ed.)Protacio, Antonio L. "Drugs That Can Be Taken During Pregnancy. IN Doctor's Corner [column]." Philippine Daily Inquirer, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.