Tapang, G. (2012). Science and K + 12. IN Prometheus bound [column]. Manila Times.
Cita Chicago (17th ed.)Tapang, Giovanni. "Science and K + 12. IN Prometheus Bound [column]." Manila Times 2012.
Cita MLA (9th ed.)Tapang, Giovanni. "Science and K + 12. IN Prometheus Bound [column]." Manila Times, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.