Παραπομπή σε μορφή APA (7η εκδ.)

Aberia, H. D., & Rivera, R. (1997). Securing land for the poor: NGO/PO efforts at maximizing government land acquisition schemes. Institute on Church and Social Issues.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Aberia, Hermilando D., και Robert Rivera. Securing Land for the Poor: NGO/PO Efforts at Maximizing Government Land Acquisition Schemes. [Quezon City]: Institute on Church and Social Issues, 1997.

Παραπομπή σε μορφή MLA (9th εκδ.)

Aberia, Hermilando D., και Robert Rivera. Securing Land for the Poor: NGO/PO Efforts at Maximizing Government Land Acquisition Schemes. Institute on Church and Social Issues, 1997.