Παραπομπή σε μορφή APA (7η εκδ.)

Villamil, W. M. (1999). Trade liberalization and child labor in the Philippines: A preliminary inquiry. The DLSU-Angelo King Institute for Economic and Business Studies.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Villamil, Winfred M. Trade Liberalization and Child Labor in the Philippines: A Preliminary Inquiry. Manila: The DLSU-Angelo King Institute for Economic and Business Studies, 1999.

Παραπομπή σε μορφή MLA (9th εκδ.)

Villamil, Winfred M. Trade Liberalization and Child Labor in the Philippines: A Preliminary Inquiry. The DLSU-Angelo King Institute for Economic and Business Studies, 1999.