Sharpe, P. J. (1979). Barron'S How To Prepare For The Toefl: :Test Of English As A Foreign Language (3. Edisyon.). Barron'S Educational Series.
Chicago Style (17. basım) AtıfSharpe, Pamela J. Barron'S How To Prepare For The Toefl: :Test Of English As A Foreign Language. 3. Edisyon. New York: Barron'S Educational Series, 1979.
MLA (9th ed.) AtıfSharpe, Pamela J. Barron'S How To Prepare For The Toefl: :Test Of English As A Foreign Language. 3. Edisyon. Barron'S Educational Series, 1979.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..