Cita APA (7th ed.)
Shreves, R. T., & Dunwoodie, B. (2011). Drupal 7 bible. Wiley.
Cita Chicago (17th ed.)
Shreves, Richard T., i Brice Dunwoodie. Drupal 7 Bible. Indianapolis, Ind.: Wiley, 2011.
Cita MLA (9th ed.)
Shreves, Richard T., i Brice Dunwoodie. Drupal 7 Bible. Wiley, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.