APA-viite

Bastien, G., & Degu, C. A. (2003). CCSP selfstudy CCSP cisco secure PIX firewall advanced exam certification guide. Pearson Education.

Chicago-tyylinen lähdeviittaus

Bastien, Greg, ja Christian Abera Degu. CCSP Selfstudy CCSP Cisco Secure PIX Firewall Advanced Exam Certification Guide. Delhi: Pearson Education, 2003.

MLA-viite

Bastien, Greg, ja Christian Abera Degu. CCSP Selfstudy CCSP Cisco Secure PIX Firewall Advanced Exam Certification Guide. Pearson Education, 2003.