Joaquin, A. (2001). Anthrax scare hits RP: Letters send jitters. Philippine Daily Inquirer.
Cita Chicago (17th ed.)Joaquin, Ansbert. "Anthrax Scare Hits RP: Letters Send Jitters." Philippine Daily Inquirer 2001.
Cita MLA (9th ed.)Joaquin, Ansbert. "Anthrax Scare Hits RP: Letters Send Jitters." Philippine Daily Inquirer, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.