Παραπομπή σε μορφή APA (7η εκδ.)

Perena, G. (1999). Simula noong 1st sem ng 1998, RP BOP surplus, umakyat ng 90%. Kabayan.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Perena, Gina. "Simula Noong 1st Sem Ng 1998, RP BOP Surplus, Umakyat Ng 90%." Kabayan 1999.

Παραπομπή σε μορφή MLA (9th εκδ.)

Perena, Gina. "Simula Noong 1st Sem Ng 1998, RP BOP Surplus, Umakyat Ng 90%." Kabayan, 1999.