Cita APA (7a ed.)

Sheltren, J., Newton, N., & Catchpole, N. (2013). High performance Drupal. O'Reilly Media.

Cita Chicago Style (17a ed.)

Sheltren, Jeff, Narayan Newton, y Nathaniel Catchpole. High Performance Drupal. Sebastopol, CA: O'Reilly Media, 2013.

Cita MLA (8a ed.)

Sheltren, Jeff, et al. High Performance Drupal. O'Reilly Media, 2013.