Goleman, D. (2014). Focus: The hidden driver of excellence. Bloomsbury Publishing.
Lua i Stíl Chicago (17ú heag.)Goleman, Daniel. Focus: The Hidden Driver of Excellence. London: Bloomsbury Publishing, 2014.
Lua MLA (9ú heag.)Goleman, Daniel. Focus: The Hidden Driver of Excellence. Bloomsbury Publishing, 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.