Association of Research Libraries. Systems and Procedures Exchange Center. (1991). Scholarly information centers in ARL libraries. Association of Research Libraries, Office of Management Services, Systems and Procedures Exchange Center.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Association of Research Libraries. Systems and Procedures Exchange Center. Scholarly Information Centers in ARL Libraries. Washington, D.C.: Association of Research Libraries, Office of Management Services, Systems and Procedures Exchange Center, 1991.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Association of Research Libraries. Systems and Procedures Exchange Center. Scholarly Information Centers in ARL Libraries. Association of Research Libraries, Office of Management Services, Systems and Procedures Exchange Center, 1991.