Cita APA (7a ed.)

Bellinger, A. (2006). Getting acquainted with OPML. O'Reilly.

Cita Chicago Style (17a ed.)

Bellinger, Amy. Getting Acquainted with OPML. [Sebastopol, Calif.]: O'Reilly, 2006.

Cita MLA (8a ed.)

Bellinger, Amy. Getting Acquainted with OPML. O'Reilly, 2006.