Gatdula, L. S. (1999). Roy Alvarez says healing the environment starts with M.E. Philippine Daily Inquirer.
Citazione stile Chigago Style (17a edizione)Gatdula, Leah Salterio. "Roy Alvarez Says Healing the Environment Starts with M.E." Philippine Daily Inquirer 1999.
Citatione MLA (9a ed.)Gatdula, Leah Salterio. "Roy Alvarez Says Healing the Environment Starts with M.E." Philippine Daily Inquirer, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.