Goodman, I. J. (1971). Birds: Brain and behavior.
Lua i Stíl Chicago (17ú heag.)Goodman, Irving J. Birds: Brain and Behavior. New York, 1971.
Lua MLA (9ú heag.)Goodman, Irving J. Birds: Brain and Behavior. 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.