Cita APA (7a ed.)

Ford, W., & Baum, M. S. (1997). Secure electronic commerce: Building the infrastructure for digital signatures and encryption. [S.n.].

Cita Chicago Style (17a ed.)

Ford, Warwick, y Michael S. Baum. Secure Electronic Commerce: Building the Infrastructure for Digital Signatures and Encryption. Upper Saddle River: [S.n.], 1997.

Cita MLA (9a ed.)

Ford, Warwick, y Michael S. Baum. Secure Electronic Commerce: Building the Infrastructure for Digital Signatures and Encryption. [S.n.], 1997.