Hardin, R. (2009). How do you know?: The economics of ordinary knowledge. Princeton University Press.
Lua i Stíl Chicago (17ú heag.)Hardin, Russell. How Do You Know?: The Economics of Ordinary Knowledge. Princeton, NJ: Princeton University Press, 2009.
Lua MLA (9ú heag.)Hardin, Russell. How Do You Know?: The Economics of Ordinary Knowledge. Princeton University Press, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.