APA (7th ed.) Citation

Ong, P. S. (2001). Philippine biodiversity in crises. Philippine Star.

Chicago Style (17th ed.) Citation

Ong, Perry S. "Philippine Biodiversity in Crises." Philippine Star 2001.

MLA (9th ed.) Citation

Ong, Perry S. "Philippine Biodiversity in Crises." Philippine Star, 2001.

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