Παραπομπή σε μορφή APA (7η εκδ.)

De Viana, A. V. (2013). St. Pedro Calungsod and his companions. Boletin Eclesiastico de Filipinas.

Παραπομπή σε μορφή Chicago (17η εκδ.)

De Viana, Augusto V. "St. Pedro Calungsod and His Companions." Boletin Eclesiastico De Filipinas 2013.

Παραπομπή σε μορφή MLA (9th εκδ.)

De Viana, Augusto V. "St. Pedro Calungsod and His Companions." Boletin Eclesiastico De Filipinas, 2013.