APA (7th ed.) Citation

Douglass, R. T., Little, M., & Smith, J. W. (2006). Building Online Communities with Drupal, phpBB, and WordPress. Apress.

Chicago Style (17th ed.) Citation

Douglass, Robert T., Mike Little, and Jared W. Smith. Building Online Communities with Drupal, PhpBB, and WordPress. Berkeley, CA: Apress, 2006.

MLA (8th ed.) Citation

Douglass, Robert T., et al. Building Online Communities with Drupal, PhpBB, and WordPress. Apress, 2006.