Sykes, C. J. (1990). The hollow men: Politics and corruption in higher education. Regnery Gateway ; Distributed to the trade by National Book Network.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sykes, Charles J. The Hollow Men: Politics and Corruption in Higher Education. Washington, D.C. : Lanham, MD: Regnery Gateway ; Distributed to the trade by National Book Network, 1990.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sykes, Charles J. The Hollow Men: Politics and Corruption in Higher Education. Regnery Gateway ; Distributed to the trade by National Book Network, 1990.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.