Cita APA (7th ed.)

Perlas, N. (2006). Tragedy and GNP. Philippine Star.

Cita Chicago (17th ed.)

Perlas, Nicanor. "Tragedy and GNP." Philippine Star 2006.

Cita MLA (9th ed.)

Perlas, Nicanor. "Tragedy and GNP." Philippine Star, 2006.