Shreves, R. (2008). Drupal 6 themes: Create new themes for your Drupal 6 site with clean layout and powerful CSS styling. Packt Pub.
Chicago-Zitierstil (17. Ausg.)Shreves, Ric. Drupal 6 Themes: Create New Themes for Your Drupal 6 Site with Clean Layout and Powerful CSS Styling. Birmingham: Packt Pub, 2008.
MLA-Zitierstil (9. Ausg.)Shreves, Ric. Drupal 6 Themes: Create New Themes for Your Drupal 6 Site with Clean Layout and Powerful CSS Styling. Packt Pub, 2008.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.