APA Format
Stallings, William. (2011).
Cryptography and network security : principles and practice / William Stallings
. New York :: Prentice Hall,.
MLA Format
Stallings, William.
Cryptography and network security : principles and practice / William Stallings
. New York :: Prentice Hall,, 2011
Chicago Format
Stallings, William. Cryptography and network security : principles and practice / William Stallings. New York :: Prentice Hall,, 2011.