APA (7th ed.) Zitazioa
Mercer, D. (2010). Drupal 7: Create and operate any type of website quickly and efficiently (2nd ed.). Packt Pub..
Chicago Style (17th ed.) Zitazioa
Mercer, David. Drupal 7: Create and Operate Any Type of Website Quickly and Efficiently. 2nd ed. Birmingham [U.K.]: Packt Pub., 2010.
MLA (9th ed.) Zitazioa
Mercer, David. Drupal 7: Create and Operate Any Type of Website Quickly and Efficiently. 2nd ed. Packt Pub., 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.