Cita APA (7a ed.)

Powers, D. (2015). Up to Speed with PHP 7 (1st edition.). Infinite Skills.

Cita Chicago Style (17a ed.)

Powers, David. Up to Speed with PHP 7. 1st edition. Infinite Skills, 2015.

Cita MLA (9a ed.)

Powers, David. Up to Speed with PHP 7. 1st edition. Infinite Skills, 2015.