APA (7th ed.) Citation

Ockman, S., DiBona, C., & Stone, M. (1999). Open sources: Voices from the Open Source Revolution. O'Reilly.

Chicago Style (17th ed.) Citation

Ockman, Sam, Chris DiBona, and Mark Stone. Open Sources: Voices from the Open Source Revolution. Sebastopol, California: O'Reilly, 1999.

MLA (9th ed.) Citation

Ockman, Sam, et al. Open Sources: Voices from the Open Source Revolution. O'Reilly, 1999.