Contreras, V. (1997). Traffic czar sacks 1,300 volunteers. Philippine Daily Inquirer.
Lua i Stíl Chicago (17ú heag.)Contreras, Voltaire. "Traffic Czar Sacks 1,300 Volunteers." Philippine Daily Inquirer 1997.
Lua MLA (9ú heag.)Contreras, Voltaire. "Traffic Czar Sacks 1,300 Volunteers." Philippine Daily Inquirer, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.