APA (7e ed.) Bronvermelding

Pierce, D., Coggshall, V., & Kinsell, S. (2010). Cracking the toefl ibt with cd, 2011 edition (2011 edition.). Random House.

Chicago (17e ed.) Bronvermelding

Pierce, Douglas, Vanessa Coggshall, en Sean Kinsell. Cracking the Toefl Ibt with Cd, 2011 Edition. 2011 edition. New York: Random House, 2010.

MLA (9e ed.) Bronvermelding

Pierce, Douglas, et al. Cracking the Toefl Ibt with Cd, 2011 Edition. 2011 edition. Random House, 2010.