Pro Drupal Development

MLA

VanDyk, John K, and Matt Westgate. Pro Drupal Development. Apress, 2007.

APA

VanDyk, J. K, & Westgate, M. (2007). Pro Drupal Development. Apress.

Chicago

VanDyk, John K., and Matt Westgate. Pro Drupal Development. : Apress, 2007.