APA (7th ed.) Citation

Sheltren, J., Newton, N., & Catchpole, N. (2013). High Performance Drupal (1st edition.). O'Reilly Media, Inc..

Chicago Style (17th ed.) Citation

Sheltren, Jeff, Narayan Newton, and Nathaniel Catchpole. High Performance Drupal. 1st edition. O'Reilly Media, Inc., 2013.

MLA (9th ed.) Citation

Sheltren, Jeff, et al. High Performance Drupal. 1st edition. O'Reilly Media, Inc., 2013.