Pearson, R. (1972). The avian brain. Academic Press.
Lua i Stíl Chicago (17ú heag.)Pearson, Ronald. The Avian Brain. London, New York: Academic Press, 1972.
Lua MLA (8ú heag.)Pearson, Ronald. The Avian Brain. Academic Press, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.