Eells, K. W., & Davis, A. (1951). Intelligence and cultural differences: A study of cultural learning and problem-solving. University of Chicago Press.
Chicago-referens (17:e uppl.)Eells, Kenneth Walter, och Allison Davis. Intelligence and Cultural Differences: A Study of Cultural Learning and Problem-solving. [Chicago]: University of Chicago Press, 1951.
MLA-referens (9:e uppl.)Eells, Kenneth Walter, och Allison Davis. Intelligence and Cultural Differences: A Study of Cultural Learning and Problem-solving. University of Chicago Press, 1951.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.