Παραπομπή σε μορφή APA (7η εκδ.)

Ogena, N. B., & Ogena, A. F. (2016). Timing of sexual debut and marriage in Bicol: Does pregnancy matter? Commision on Population.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ogena, Nimfa B., και Angelique F. Ogena. Timing of Sexual Debut and Marriage in Bicol: Does Pregnancy Matter? Mandaluyong City: Commision on Population, 2016.

Παραπομπή σε μορφή MLA (9th εκδ.)

Ogena, Nimfa B., και Angelique F. Ogena. Timing of Sexual Debut and Marriage in Bicol: Does Pregnancy Matter? Commision on Population, 2016.