McCarthy, M. (2005). Touchstone: Teacher's edition. Cambridge, U.K: Cambridge University Press.
Chicago Style aipamenaMcCarthy, Michael. Touchstone: Teacher's Edition. Cambridge, U.K: Cambridge University Press, 2005.
MLA aipamenaMcCarthy, Michael. Touchstone: Teacher's Edition. Cambridge, U.K: Cambridge University Press, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.