APA (7th ed.) Citation

Contreras, V. (2005). RP's poorest provinces like Africa, richest like Jamaica. Philippine Daily Inquirer.

Chicago Style (17th ed.) Citation

Contreras, Voltaire. "RP's Poorest Provinces like Africa, Richest like Jamaica." Philippine Daily Inquirer 2005.

MLA (9th ed.) Citation

Contreras, Voltaire. "RP's Poorest Provinces like Africa, Richest like Jamaica." Philippine Daily Inquirer, 2005.

Warning: These citations may not always be 100% accurate.