Sharpe, P. J., & Pamela J. Sharpe. (2006). Barron's how to prepare for the Toefl iBT: Test of English as a foreign language Internet-based test. Nxb Trẻ.
Stile di citazione ChicagoSharpe, Pamela J., e Pamela J. Sharpe. Barron's How to Prepare for the Toefl IBT: Test of English As a Foreign Language Internet-based Test. Nxb Trẻ, 2006.
Citazione MLASharpe, Pamela J., e Pamela J. Sharpe. Barron's How to Prepare for the Toefl IBT: Test of English As a Foreign Language Internet-based Test. Nxb Trẻ, 2006.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.