Khayat, A. A., & L., L. (1981). A study of institutional environment at King Abdulaziz University as perceived upper division students. Michigan State University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Khayat, Abdulaziz A., و Louis L. A Study of Institutional Environment at King Abdulaziz University as Perceived Upper Division Students. Michigan: Michigan State University, 1981.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Khayat, Abdulaziz A., و Louis L. A Study of Institutional Environment at King Abdulaziz University as Perceived Upper Division Students. Michigan State University, 1981.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.