Swan, M., & Walter, C. (1984). The Cambridge English course 1: Teacher's book. Cambridge: Cambridge University Press.
Chicago Style aipamenaSwan, Michael, và Catherine Walter. The Cambridge English Course 1: Teacher's Book. Cambridge: Cambridge University Press, 1984.
MLA aipamenaSwan, Michael, và Catherine Walter. The Cambridge English Course 1: Teacher's Book. Cambridge: Cambridge University Press, 1984.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.