Παραπομπή σε μορφή APA (7η εκδ.)

Navarro, R. C. (1991). The churches of Ilocos Norte: Treasures from Spain's colonial rule / Roberto C. Navarro. Manila Times.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Navarro, Roberto C. "The Churches of Ilocos Norte: Treasures from Spain's Colonial Rule / Roberto C. Navarro." Manila Times 1991.

Παραπομπή σε μορφή MLA (9th εκδ.)

Navarro, Roberto C. "The Churches of Ilocos Norte: Treasures from Spain's Colonial Rule / Roberto C. Navarro." Manila Times, 1991.