APA-viite (7. p.)
Poon, D. (2011). Drupal 7 fields/CCK beginner's guide: Explore Drupal 7 fields/CCK and master their use. Packt Pub. Ltd..
Chicago-viite (17. p.)
Poon, Dave. Drupal 7 Fields/CCK Beginner's Guide: Explore Drupal 7 Fields/CCK and Master Their Use. Birmingham, U.K.: Packt Pub. Ltd., 2011.
MLA-viite (9. p.)
Poon, Dave. Drupal 7 Fields/CCK Beginner's Guide: Explore Drupal 7 Fields/CCK and Master Their Use. Packt Pub. Ltd., 2011.
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