APA (7th ed.) Zitazioa
Kumar, K. (2010). Drupal 6 theming cookbook: Over 100 clear, step-by-step recipes to create powerful, great-looking Drupal themes. Packt.
Chicago Style (17th ed.) Zitazioa
Kumar, Karthik. Drupal 6 Theming Cookbook: Over 100 Clear, Step-by-step Recipes to Create Powerful, Great-looking Drupal Themes. Birmingham, U.K.: Packt, 2010.
MLA (9th ed.) Zitazioa
Kumar, Karthik. Drupal 6 Theming Cookbook: Over 100 Clear, Step-by-step Recipes to Create Powerful, Great-looking Drupal Themes. Packt, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.