Eells, K. W., & Davis, A. (1951). Intelligence and cultural differences: A study of cultural learning and problem-solving. University of Chicago Press.
Lua i Stíl Chicago (17ú heag.)Eells, Kenneth Walter, agus Allison Davis. Intelligence and Cultural Differences: A Study of Cultural Learning and Problem-solving. [Chicago]: University of Chicago Press, 1951.
Lua MLA (9ú heag.)Eells, Kenneth Walter, agus Allison Davis. Intelligence and Cultural Differences: A Study of Cultural Learning and Problem-solving. University of Chicago Press, 1951.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.