Friedman, M. J. (1970). Samuel Beckett now: Critical approaches to his novels, poetry, and plays. University of Chicago Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Friedman, Melvin J. Samuel Beckett Now: Critical Approaches to His Novels, Poetry, and Plays. [Chicago]: University of Chicago Press, 1970.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Friedman, Melvin J. Samuel Beckett Now: Critical Approaches to His Novels, Poetry, and Plays. University of Chicago Press, 1970.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.