McCarthy, M., McCarten, J., Helen Sandiford,, Aldcorn, . S., Battiste, J. . K., Gitrzy, A., & Stafford-Yilmaz, . L. (2010). Touchstone: Teacher's edition (3rd printing.). New York, U.S.A.: Cambridge University Press.

McCarthy, Michael, Jeanne McCarten, Helen Sandiford, Sue Aldcorn, Janet K. Battiste, Andrew Gitrzy, and Lynn Stafford-Yilmaz. Touchstone: Teacher's Edition. 3rd printing. New York, U.S.A.: Cambridge University Press, 2010.

McCarthy, Michael, et al. Touchstone: Teacher's Edition. 3rd printing. New York, U.S.A.: Cambridge University Press, 2010.