International Federation of Library Associations and Institutions. Professional Board & Clement, H. E. A. (1992). Medium-term programme, 1992-1997. The Federation.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Federation of Library Associations and Institutions. Professional Board و Hope E. A. Clement. Medium-term Programme, 1992-1997. The Hague: The Federation, 1992.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)International Federation of Library Associations and Institutions. Professional Board و Hope E. A. Clement. Medium-term Programme, 1992-1997. The Federation, 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.