Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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