Cita APA (7a ed.)

Byron, A., & Berry, A. (2011). Using Drupal (2nd ed.). O'Reilly.

Cita Chicago Style (17a ed.)

Byron, Angela, y Addison Berry. Using Drupal. 2nd ed. Cambridge, [Mass.]: O'Reilly, 2011.

Cita MLA (8a ed.)

Byron, Angela, y Addison Berry. Using Drupal. 2nd ed. O'Reilly, 2011.