APA Style

Stallings, W. (2006). CRYPTOGRAPHY AND NETWORK SECURITY:PRINCIPLES AND PRACTICE. 4th edition (4th edition). USA: Pearson Education, Inc.

MLA Style

Stallings, William. "CRYPTOGRAPHY AND NETWORK SECURITY:PRINCIPLES AND PRACTICE. 4th edition". 4th edition USA: Pearson Education, Inc, 2006. Information Technology.