APA-ийн эшлэл(7 дахь хэвлэлт)

Robertson, J. G., & Fitzgerald, B. (2013). Drupal for education and e-learning: Create web-based, content-rich tools for teaching and learning (2nd ed.). Packt Pub..

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Robertson, James G., ба Bill Fitzgerald. Drupal for Education and E-learning: Create Web-based, Content-rich Tools for Teaching and Learning. 2nd ed. Birmingham: Packt Pub., 2013.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Robertson, James G., ба Bill Fitzgerald. Drupal for Education and E-learning: Create Web-based, Content-rich Tools for Teaching and Learning. 2nd ed. Packt Pub., 2013.