Pol, K. (2012). Drupal 7 multilingual sites: A hands-on, practical guide for configuring your Drupal 7 website to handle all languages for your site users. Packt Pub..
芝加哥风格引文Pol, Kristen. Drupal 7 Multilingual Sites: A Hands-on, Practical Guide for Configuring Your Drupal 7 Website to Handle All Languages for Your Site Users. Birmingham [England]: Packt Pub., 2012.
MLA引文Pol, Kristen. Drupal 7 Multilingual Sites: A Hands-on, Practical Guide for Configuring Your Drupal 7 Website to Handle All Languages for Your Site Users. Packt Pub., 2012.
警告：这些引文格式不一定是100％准确.