Παραπομπή σε μορφή APA (7η εκδ.)

Zafra, N. (1993). The colonization of the Philippines and the beginnings of the Spanish city of Manila. National Historical Institute.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Zafra, Nicolas. The Colonization of the Philippines and the Beginnings of the Spanish City of Manila. Manila: National Historical Institute, 1993.

Παραπομπή σε μορφή MLA (9th εκδ.)

Zafra, Nicolas. The Colonization of the Philippines and the Beginnings of the Spanish City of Manila. National Historical Institute, 1993.