APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

Warning: These citations may not always be 100% accurate.