APA (7th ed.) Zitazioa
World Bank, ebrary, Inc, & Sáez, S. (2010). Trade in services negotiations: A guide for developing countries. World Bank.
Chicago Style (17th ed.) Zitazioa
World Bank, Inc ebrary, eta Sebastián Sáez. Trade in Services Negotiations: A Guide for Developing Countries. Washington, D.C.: World Bank, 2010.
MLA (9th ed.) Zitazioa
World Bank, et al. Trade in Services Negotiations: A Guide for Developing Countries. World Bank, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.