Swan, M. (1989). The Cambridge English course: Teacher's book. Cambridge: Cambridge Univ. Press.
Chicago Style aipamenaSwan, Michael. The Cambridge English Course: Teacher's Book. Cambridge: Cambridge Univ. Press, 1989.
MLA aipamenaSwan, Michael. The Cambridge English Course: Teacher's Book. Cambridge: Cambridge Univ. Press, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.