APA aipamena

Abrera Jess. (2012). Worsening air pollution. Philippine Daily Inquirer.

Chicago Style aipamena

Abrera Jess. "Worsening Air Pollution." Philippine Daily Inquirer 2012.

MLA aipamena

Abrera Jess. "Worsening Air Pollution." Philippine Daily Inquirer, 2012.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.