Webster, D. E. (1972). Library policies: Analysis, formulation and use in academic institutions. Association of Research Libraries, Office of Management Studies].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Webster, Duane E. Library Policies: Analysis, Formulation and Use in Academic Institutions. [Washington: Association of Research Libraries, Office of Management Studies], 1972.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Webster, Duane E. Library Policies: Analysis, Formulation and Use in Academic Institutions. Association of Research Libraries, Office of Management Studies], 1972.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.