(2002). Longman complete course for the TOEFL tests: Preparation for the computer and paper tests. Trẻ.
Chicago Style aipamenaLongman Complete Course for the TOEFL Tests: Preparation for the Computer and Paper Tests. Trẻ, 2002.
MLA aipamenaLongman Complete Course for the TOEFL Tests: Preparation for the Computer and Paper Tests. Trẻ, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.