APA Citation

TIBBS, R. W., & Oakes, E. Security Firewalls and VPNS: Principles and Practices.

Chicago Style Citation

TIBBS, Richard W., and Edward Oakes. Security Firewalls and VPNS: Principles and Practices.

MLA Citation

TIBBS, Richard W., and Edward Oakes. Security Firewalls and VPNS: Principles and Practices.

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