Pro Drupal 7 Development

MLA

Tomlinson, Todd, et al. Pro Drupal 7 Development. Apress, 2010.

APA

Tomlinson, T., Brauer, J., Douglass, R., VanDyk, J. K, & Wolanin, P. M. (2010). Pro Drupal 7 Development. Apress.

Chicago

Tomlinson, Todd, Joshua Brauer, Robert Douglass, John K VanDyk, and Peter M Wolanin. Pro Drupal 7 Development. : Apress, 2010.