APA (7th ed.) Citation

Porcalla, D., & Dones, L. (1997). Tan files P290-M suit vs BIR chief. Philippine Star.

Chicago Style (17th ed.) Citation

Porcalla, Delon, and Liberty Dones. "Tan Files P290-M Suit Vs BIR Chief." Philippine Star 1997.

MLA (9th ed.) Citation

Porcalla, Delon, and Liberty Dones. "Tan Files P290-M Suit Vs BIR Chief." Philippine Star, 1997.

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