Godin, S. (1995). Presenting digital cash. Sams.net.
Lua i Stíl Chicago (17ú heag.)Godin, Seth. Presenting Digital Cash. Indianapolis, Ind: Sams.net, 1995.
Lua MLA (9ú heag.)Godin, Seth. Presenting Digital Cash. Sams.net, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.