Cita APA (7th ed.)
Saifur's. Saifur's TOEFL iBT.
Cita Chicago (17th ed.)
Saifur's. Saifur's TOEFL IBT.
Cita MLA (9th ed.)
Saifur's. Saifur's TOEFL IBT.
Atenció: Aquestes cites poden no estar 100% correctes.