Paul, R. S. (1991). Whatever happened to Sherlock Holmes: Detective fiction, popular theology, and society. Southern Illinois University Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Paul, Robert S. Whatever Happened to Sherlock Holmes: Detective Fiction, Popular Theology, and Society. Carbondale: Southern Illinois University Press, 1991.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Paul, Robert S. Whatever Happened to Sherlock Holmes: Detective Fiction, Popular Theology, and Society. Southern Illinois University Press, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.