APA (7th ed.) Citation

Sobkowicz, M. (2015). Learn Game Programming with Ruby (1st edition.). Pragmatic Bookshelf.

Chicago Style (17th ed.) Citation

Sobkowicz, Mark. Learn Game Programming with Ruby. 1st edition. Pragmatic Bookshelf, 2015.

MLA (9th ed.) Citation

Sobkowicz, Mark. Learn Game Programming with Ruby. 1st edition. Pragmatic Bookshelf, 2015.

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