Cita APA

Garfinkel, S., & Spafford, G. (1997). Web security & commerce. Sebastopol: O'Reilly.

Chicago Style Citation

Garfinkel, Simson., i Gene Spafford. Web Security & Commerce. Sebastopol: O'Reilly, 1997.

Cita MLA

Garfinkel, Simson., i Gene Spafford. Web Security & Commerce. Sebastopol: O'Reilly, 1997.

Atenció: Aquestes cites poden no estar 100% correctes.