APA (7th ed.) Citation

Melançon, B. (2011). The definitive guide to Drupal 7. Apress. https://doi.org/10.1007/978-1-4302-3136-3

Chicago Style (17th ed.) Citation

Melançon, Benjamin. The Definitive Guide to Drupal 7. New York: Apress, 2011. https://doi.org/10.1007/978-1-4302-3136-3.

MLA (9th ed.) Citation

Melançon, Benjamin. The Definitive Guide to Drupal 7. Apress, 2011. https://doi.org/10.1007/978-1-4302-3136-3.