Cueto, D. (1997). 18 officials sued for Ozone. Philippine Daily Inquirer.
Chicago Style aipamenaCueto, Donna. "18 Officials Sued for Ozone." Philippine Daily Inquirer 1997.
MLA aipamenaCueto, Donna. "18 Officials Sued for Ozone." Philippine Daily Inquirer, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.