MLA

Sung, Kelvin, et al. Build Your Own 2d Game Engine and Create Great Web Games. Apress, 2015.

APA

Sung, K., Arnez, F., Pace, J., & Pavleas, J. (2015). Build Your Own 2D Game Engine and Create Great Web Games. Apress.

Chicago

Sung, Kelvin, Fernando Arnez, Jason Pace, and Jebediah Pavleas. Build Your Own 2D Game Engine and Create Great Web Games. : Apress, 2015.