APA aipamena

 Sherif, M. H. (2004).  Protocols for secure electronic commerce.  CRC Press.

Chicago Style aipamena

 Sherif, Mostafa Hashem.  Protocols for Secure Electronic Commerce.  CRC Press, 2004.

MLA aipamena

 Sherif, Mostafa Hashem.  Protocols for Secure Electronic Commerce.  CRC Press, 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.