Παραπομπή σε μορφή APA (7η εκδ.)

Simbulan, D. C. (2005). The modern principalia: The historical evolution of the Philippine ruling oligarchy. University of the Philippines Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Simbulan, Dante C. The Modern Principalia: The Historical Evolution of the Philippine Ruling Oligarchy. Diliman, Quezon City: University of the Philippines Press, 2005.

Παραπομπή σε μορφή MLA (9th εκδ.)

Simbulan, Dante C. The Modern Principalia: The Historical Evolution of the Philippine Ruling Oligarchy. University of the Philippines Press, 2005.