Παραπομπή σε μορφή APA (7η εκδ.)

Medalla, E. M., & Yap, J. T. (2008). Policy issues for the ASEAN Economic Community: The rules of origin. Philippine Institute for Development Studies.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Medalla, Erlinda M., και Josef T. Yap. Policy Issues for the ASEAN Economic Community: The Rules of Origin. Makati City: Philippine Institute for Development Studies, 2008.

Παραπομπή σε μορφή MLA (9th εκδ.)

Medalla, Erlinda M., και Josef T. Yap. Policy Issues for the ASEAN Economic Community: The Rules of Origin. Philippine Institute for Development Studies, 2008.