APA (7th ed.) Citation

Romero, A. V. (2010). VirtualBox 3.1: Beginner's guide : deploy and manage a cost-effective virtual environment using VirtualBox. Packt Open Source.

Chicago Style (17th ed.) Citation

Romero, Alfonso V. VirtualBox 3.1: Beginner's Guide : Deploy and Manage a Cost-effective Virtual Environment Using VirtualBox. Birmingham, U.K: Packt Open Source, 2010.

MLA (9th ed.) Citation

Romero, Alfonso V. VirtualBox 3.1: Beginner's Guide : Deploy and Manage a Cost-effective Virtual Environment Using VirtualBox. Packt Open Source, 2010.

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