Não informado. Northwestern Alumni News. North western University, Alumni Association Boardof Directors.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Não informado. Northwestern Alumni News. Evanston, Ill: North western University, Alumni Association Boardof Directors.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Não informado. Northwestern Alumni News. North western University, Alumni Association Boardof Directors.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.