Παραπομπή APA

Travis, B. (2011). Pro Drupal 7 for windows developers. Springer.

Παραπομπή Chicago Style

Travis, Brian. Pro Drupal 7 for Windows Developers. New Delhi: Springer, 2011.

Παραπομπή MLA

Travis, Brian. Pro Drupal 7 for Windows Developers. Springer, 2011.