APA (7th ed.) Citation

Byron, A., Berry, A., & Bondt, B. d. (2013). Drupal 7. Anaya Multimedia.

Chicago Style (17th ed.) Citation

Byron, Angela, Addison Berry, and Bruno de Bondt. Drupal 7. Madrid: Anaya Multimedia, 2013.

MLA (9th ed.) Citation

Byron, Angela, et al. Drupal 7. Anaya Multimedia, 2013.