APA (7th ed.) Citation

de Groot, C. (2019). Game Development with PyGame: Write Your Own Games, Simulations, and Demonstrations with Python (1st edition.). Apress.

Chicago Style (17th ed.) Citation

de Groot, Coen. Game Development with PyGame: Write Your Own Games, Simulations, and Demonstrations with Python. 1st edition. Apress, 2019.

MLA (9th ed.) Citation

de Groot, Coen. Game Development with PyGame: Write Your Own Games, Simulations, and Demonstrations with Python. 1st edition. Apress, 2019.

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