APA (7th ed.) Citation

Penn, J., & Smith, J. (2014). Build iOS games with Sprite Kit: Unleash your imagination in two dimensions. Pragmatic Bookshelf.

Chicago Style (17th ed.) Citation

Penn, Jonathan, and Josh Smith. Build IOS Games with Sprite Kit: Unleash Your Imagination in Two Dimensions. [Frisco, TX]: Pragmatic Bookshelf, 2014.

MLA (9th ed.) Citation

Penn, Jonathan, and Josh Smith. Build IOS Games with Sprite Kit: Unleash Your Imagination in Two Dimensions. Pragmatic Bookshelf, 2014.