Columbia University. Graduate School of Arts and Sciences. Graduate School of Arts and Sciences: Announcement. [publisher not identified].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Columbia University. Graduate School of Arts and Sciences. Graduate School of Arts and Sciences: Announcement. [Place of publication not identified]: [publisher not identified].
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Columbia University. Graduate School of Arts and Sciences. Graduate School of Arts and Sciences: Announcement. [publisher not identified].
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.