Cita APA (7a ed.)
Varkonyi, R. (2012). Drupal Rules how-to: Discover the power of the Rules framework to turn your Drupal 7 installation into an action-based, interactive application. Packt Pub..
Cita Chicago Style (17a ed.)
Varkonyi, Robert. Drupal Rules How-to: Discover the Power of the Rules Framework to Turn Your Drupal 7 Installation into an Action-based, Interactive Application. Birminghan, UK: Packt Pub., 2012.
Cita MLA (9a ed.)
Varkonyi, Robert. Drupal Rules How-to: Discover the Power of the Rules Framework to Turn Your Drupal 7 Installation into an Action-based, Interactive Application. Packt Pub., 2012.
Precaución: Estas citas no son 100% exactas.