APA Citation

 Stallings, W. (2014).  Cryptography and Network Security: Principles and Practice.  Pearson.

Chicago Style Citation

 Stallings, William.  Cryptography and Network Security: Principles and Practice.  Pearson, 2014.

MLA Citation

 Stallings, William.  Cryptography and Network Security: Principles and Practice.  Pearson, 2014.

Warning: These citations may not always be 100% accurate.