Pierce, D., Coggshall, V., & Kinsell, S. (2010). Cracking the toefl ibt with cd, 2011 edition (2011 edition.). Random House.
Chicago-čujuhus (17. p.)Pierce, Douglas, Vanessa Coggshall, juo Sean Kinsell. Cracking the Toefl Ibt with Cd, 2011 Edition. 2011 edition. New York: Random House, 2010.
MLA-čujuhus (9. p.)Pierce, Douglas, et al. Cracking the Toefl Ibt with Cd, 2011 Edition. 2011 edition. Random House, 2010.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.