McCarthy, M., McCarten, J., & Sandiford, H. (2005). Touchstone. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)McCarthy, Michael, Jeanne McCarten, agus Helen Sandiford. Touchstone. New York: Cambridge University Press, 2005.
Lua MLA (9ú heag.)McCarthy, Michael, et al. Touchstone. Cambridge University Press, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.