Pro Drupal Development

MLA

VanDyk, John K, and Robert Douglass. Pro Drupal Development. Apress, 2008.

APA

VanDyk, J. K, & Douglass, R. (2008). Pro Drupal Development. Apress.

Chicago

VanDyk, John K., and Robert Douglass. Pro Drupal Development. : Apress, 2008.