McCarthy, M., & Michael McCarthy; Jeanne McCarten; Helen Sandiford. (2005). Touchstone: Student's book. Cambridge, UK: New York, NY,Cambridge University Press.
Chicago Style aipamenaMcCarthy, Michael, và Michael McCarthy; Jeanne McCarten; Helen Sandiford. Touchstone: Student's Book. Cambridge, UK: New York, NY,Cambridge University Press, 2005.
MLA aipamenaMcCarthy, Michael, và Michael McCarthy; Jeanne McCarten; Helen Sandiford. Touchstone: Student's Book. Cambridge, UK: New York, NY,Cambridge University Press, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.