APA (7th ed.) Citation

Feilner, M., & Graf, N. (2009). Beginning OpenVPN 2.0.9: Build and integrate virtual private networks using OpenVPN. Packt Publishing Ltd..

Chicago Style (17th ed.) Citation

Feilner, Markus, and Norbert Graf. Beginning OpenVPN 2.0.9: Build and Integrate Virtual Private Networks Using OpenVPN. Birmingham: Packt Publishing Ltd., 2009.

MLA (9th ed.) Citation

Feilner, Markus, and Norbert Graf. Beginning OpenVPN 2.0.9: Build and Integrate Virtual Private Networks Using OpenVPN. Packt Publishing Ltd., 2009.