Lazaro, D. C., & Medalla, E. M. (2006). Rules of origin: Evolving best practices for RTAs/FTAs. Philippine Institute for Development Studies.
Citazione stile Chigago Style (17a edizione)Lazaro, Dorothea C., e Erlinda M. Medalla. Rules of Origin: Evolving Best Practices for RTAs/FTAs. Makati, City: Philippine Institute for Development Studies, 2006.
Citatione MLA (9a ed.)Lazaro, Dorothea C., e Erlinda M. Medalla. Rules of Origin: Evolving Best Practices for RTAs/FTAs. Philippine Institute for Development Studies, 2006.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.