Cisco Networking Academy Program. (2010). CCNA exploration course booklet: Routing protocols and concepts, version 4.0. Cisco Press.
Цитирование в стиле Чикаго (17-е изд.)Cisco Networking Academy Program. CCNA Exploration Course Booklet: Routing Protocols and Concepts, Version 4.0. Indianapolis, Ind: Cisco Press, 2010.
Цитирование MLA (9-е изд.)Cisco Networking Academy Program. CCNA Exploration Course Booklet: Routing Protocols and Concepts, Version 4.0. Cisco Press, 2010.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.