Cita APA (7a ed.)

Villegas, B. M. (1989). Improving the lines of 18m Filipinos. IN The Positive sum game [column]. Manila Chronicle.

Cita Chicago Style (17a ed.)

Villegas, Bernardo M. "Improving the Lines of 18m Filipinos. IN The Positive Sum Game [column]." Manila Chronicle 1989.

Cita MLA (9a ed.)

Villegas, Bernardo M. "Improving the Lines of 18m Filipinos. IN The Positive Sum Game [column]." Manila Chronicle, 1989.