Hutchinson, T. (1989). Project video 1: Activity book. Oxford: Oxford University Press.
Chicago Style aipamenaHutchinson, Tom. Project Video 1: Activity Book. Oxford: Oxford University Press, 1989.
MLA aipamenaHutchinson, Tom. Project Video 1: Activity Book. Oxford: Oxford University Press, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.