Cita APA (7th ed.)

Ong, P. S., & Ingle, N. (2011). Remembering a national treasure: Leonard L. Co (1953-2010). Social Science Diliman.

Cita Chicago (17th ed.)

Ong, Perry S., i Nina Ingle. "Remembering a National Treasure: Leonard L. Co (1953-2010)." Social Science Diliman 2011.

Cita MLA (9th ed.)

Ong, Perry S., i Nina Ingle. "Remembering a National Treasure: Leonard L. Co (1953-2010)." Social Science Diliman, 2011.