Cita APA (7th ed.)
Mercer, D. (2010). Drupal 7: Create and operate any type of website quickly and efficiently (2nd ed.). Packt Pub..
Cita Chicago (17th ed.)
Mercer, David. Drupal 7: Create and Operate Any Type of Website Quickly and Efficiently. 2nd ed. Birmingham [U.K.]: Packt Pub., 2010.
Cita MLA (9th ed.)
Mercer, David. Drupal 7: Create and Operate Any Type of Website Quickly and Efficiently. 2nd ed. Packt Pub., 2010.
Atenció: Aquestes cites poden no estar 100% correctes.