Godin, S. (1995). Presenting digital cash. Sams.net.
Cita Chicago (17th ed.)Godin, Seth. Presenting Digital Cash. Indianapolis, Ind: Sams.net, 1995.
Cita MLA (9th ed.)Godin, Seth. Presenting Digital Cash. Sams.net, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.