Passingham, R. (1975). BRAIN AND INTELLIGENCE.
Lua i Stíl Chicago (17ú heag.)Passingham, R. BRAIN AND INTELLIGENCE. 1975.
Lua MLA (9ú heag.)Passingham, R. BRAIN AND INTELLIGENCE. 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.