Akerlof, G. A. (2009). Animal Spirits. Penguin Books Ltd.
Lua i Stíl Chicago (17ú heag.)Akerlof, George A. Animal Spirits. London: Penguin Books Ltd, 2009.
Lua MLA (9ú heag.)Akerlof, George A. Animal Spirits. Penguin Books Ltd, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.