Plotkin, H. (1997). Cognition and History: The evolution of intelligence and culture : the inaugural science and society lecture delivered to the International Instistute of Social History. Amsterdam: IISG.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Plotkin, Henry. Cognition and History: The Evolution of Intelligence and Culture : The Inaugural Science and Society Lecture Delivered to the International Instistute of Social History. Amsterdam: IISG, 1997.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Plotkin, Henry. Cognition and History: The Evolution of Intelligence and Culture : The Inaugural Science and Society Lecture Delivered to the International Instistute of Social History. Amsterdam: IISG, 1997.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.