Harding, K. (1998). Going international: English for tourism. Oxford: Oxford University Press.
Chicago Style aipamenaHarding, Keith. Going International: English for Tourism. Oxford: Oxford University Press, 1998.
MLA aipamenaHarding, Keith. Going International: English for Tourism. Oxford: Oxford University Press, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.