Abbott, H. P. Unnarratable knowledge: The difficulty of understanding evolution by natural selection / H. Porter Abbott. Narrative theory and the cognitive sciences.(2003).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Abbott, H. Porter. "Unnarratable Knowledge: The Difficulty of Understanding Evolution by Natural Selection / H. Porter Abbott." Narrative Theory and the Cognitive Sciences.(2003) .
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Abbott, H. Porter. "Unnarratable Knowledge: The Difficulty of Understanding Evolution by Natural Selection / H. Porter Abbott." Narrative Theory and the Cognitive Sciences.(2003), .
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.