Cita APA (7a ed.)

Richter, K., & Bolle, B. (2022). Beginning iOS Game Center and GameKit: For iOS, tvOS, and MacOS (Second edition.). Apress.

Cita Chicago Style (17a ed.)

Richter, Kyle, y Beau Bolle. Beginning IOS Game Center and GameKit: For IOS, TvOS, and MacOS. Second edition. [United States]: Apress, 2022.

Cita MLA (8a ed.)

Richter, Kyle, y Beau Bolle. Beginning IOS Game Center and GameKit: For IOS, TvOS, and MacOS. Second edition. Apress, 2022.