World Trade Organization. (2007). WTO analytical index (2nd ed.). Cambridge University Press.
Chicago Style aipamenaWorld Trade Organization. WTO Analytical Index. 2nd ed. Cambridge, UK: Cambridge University Press, 2007.
MLA aipamenaWorld Trade Organization. WTO Analytical Index. 2nd ed. Cambridge University Press, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.