APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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