Al-Imran, I. A., & Youssef, S. M. (2012). Symbolism in JohnSteinback's Novella The pearl. Al-Imam Muhammad Ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Al-Imran, Ibrahim Ahmed, و Sayed M. Youssef. Symbolism in JohnSteinback's Novella The Pearl. Riyadh: Al-Imam Muhammad Ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature, 2012.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Al-Imran, Ibrahim Ahmed, و Sayed M. Youssef. Symbolism in JohnSteinback's Novella The Pearl. Al-Imam Muhammad Ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature, 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.