Gralla, P. (2000). How the Internet works (Millenium ed.). Techmedia.
Cita Chicago (17th ed.)Gralla, Preston. How the Internet Works. Millenium ed. New Delhi: Techmedia, 2000.
Cita MLA (8th ed.)Gralla, Preston. How the Internet Works. Millenium ed. Techmedia, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.