Mercer, D. (2010). Drupal 7: Create and operate any type of website quickly and efficiently (2nd ed.). Packt Pub..
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Mercer, David. Drupal 7: Create and Operate Any Type of Website Quickly and Efficiently. 2nd ed. Birmingham [U.K.]: Packt Pub., 2010.
MLA -ийн эшлэл (9 дэх хэвлэлт)Mercer, David. Drupal 7: Create and Operate Any Type of Website Quickly and Efficiently. 2nd ed. Packt Pub., 2010.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.