Eells, K. W., & Davis, A. (1951). Intelligence and cultural differences: A study of cultural learning and problem-solving. University of Chicago Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Eells, Kenneth Walter, و Allison Davis. Intelligence and Cultural Differences: A Study of Cultural Learning and Problem-solving. [Chicago]: University of Chicago Press, 1951.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Eells, Kenneth Walter, و Allison Davis. Intelligence and Cultural Differences: A Study of Cultural Learning and Problem-solving. University of Chicago Press, 1951.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.