APA (7th ed.) Citation

McCarthy, M., McCarten, J., & Sandiford, H. (2014). Touchstone: Student's book 1 (2ª edición.). Cambridge University Press.

Chicago Style (17th ed.) Citation

McCarthy, Michael, Jeanne McCarten, and Helen Sandiford. Touchstone: Student's Book 1. 2ª edición. New York: Cambridge University Press, 2014.

MLA (9th ed.) Citation

McCarthy, Michael, et al. Touchstone: Student's Book 1. 2ª edición. Cambridge University Press, 2014.