Cita APA (7a ed.)

GUPTA, K. N. (2005). DIGITAL SIGNATURE: NETWORK SECURITY PRACTICES. PHI.

Cita Chicago Style (17a ed.)

GUPTA, K N. DIGITAL SIGNATURE: NETWORK SECURITY PRACTICES. NEW DELHI: PHI, 2005.

Cita MLA (9a ed.)

GUPTA, K N. DIGITAL SIGNATURE: NETWORK SECURITY PRACTICES. PHI, 2005.