APA (7th ed.) Zitazioa

The Princeton Review. (2022). The princeton review toefl ibt prep 2022. Princeton Review.

Chicago Style (17th ed.) Zitazioa

The Princeton Review. The Princeton Review Toefl Ibt Prep 2022. New York: Princeton Review, 2022.

MLA (9th ed.) Zitazioa

The Princeton Review. The Princeton Review Toefl Ibt Prep 2022. Princeton Review, 2022.