APA (7th ed.) Citation

Creighton, R. (2011). Unity 3.x Game Development by Example (1st edition.). Packt Publishing.

Chicago Style (17th ed.) Citation

Creighton, Ryan. Unity 3.x Game Development by Example. 1st edition. Packt Publishing, 2011.

MLA (9th ed.) Citation

Creighton, Ryan. Unity 3.x Game Development by Example. 1st edition. Packt Publishing, 2011.

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