Παραπομπή σε μορφή APA (7η εκδ.)

Chumley, C. (2016). Drupal 8 theming with Twig: Master Drupal's 8's new Twig templating engine to create fun and fast websites with simple steps to help you move from concept to completion. Packt Publishing.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Chumley, Chaz. Drupal 8 Theming with Twig: Master Drupal's 8's New Twig Templating Engine to Create Fun and Fast Websites with Simple Steps to Help You Move from Concept to Completion. Birmingham, UK: Packt Publishing, 2016.

Παραπομπή σε μορφή MLA (9th εκδ.)

Chumley, Chaz. Drupal 8 Theming with Twig: Master Drupal's 8's New Twig Templating Engine to Create Fun and Fast Websites with Simple Steps to Help You Move from Concept to Completion. Packt Publishing, 2016.