Sharpe, P. J. (1979). Barron's how to prepare for the TOEFL test of english as a foreign language. Barron\'s educational series.
استشهاد بنمط شيكاغوSharpe, Pamela J. Barron's How to Prepare for the TOEFL Test of English As a Foreign Language. Barron\'s educational series, 1979.
MLA استشهادSharpe, Pamela J. Barron's How to Prepare for the TOEFL Test of English As a Foreign Language. Barron\'s educational series, 1979.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.