Cassell, K. A., & Hiremath, U. (2013). Reference and information services: An introduction (Third edition.). Neal-Schuman, an imprint of the American Library Association.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Cassell, Kay Ann, و Uma Hiremath. Reference and Information Services: An Introduction. Third edition. Chicago: Neal-Schuman, an imprint of the American Library Association, 2013.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Cassell, Kay Ann, و Uma Hiremath. Reference and Information Services: An Introduction. Third edition. Neal-Schuman, an imprint of the American Library Association, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.