Kail, R., & Pellegrino, J. W. (1985). Human intelligence: Perspectives and prospects. Freeman.
Lua i Stíl Chicago (17ú heag.)Kail, Robert, agus James W. Pellegrino. Human Intelligence: Perspectives and Prospects. New York: Freeman, 1985.
Lua MLA (9ú heag.)Kail, Robert, agus James W. Pellegrino. Human Intelligence: Perspectives and Prospects. Freeman, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.