Cita APA (7a ed.)

(2008). Release 2.0: Issue 10, October 2008. O'Reilly Media, Inc.

Cita Chicago Style (17a ed.)

Release 2.0: Issue 10, October 2008. Sebastopol, Calif.: O'Reilly Media, Inc, 2008.

Cita MLA (9a ed.)

Release 2.0: Issue 10, October 2008. O'Reilly Media, Inc, 2008.