APA (7th ed.) Citation

Sahar, A., & Clayton, C. (2020). iOS 13 Programming for Beginners - Fourth Edition (4th edition.). Packt Publishing.

Chicago Style (17th ed.) Citation

Sahar, Ahmad, and Craig Clayton. IOS 13 Programming for Beginners - Fourth Edition. 4th edition. Packt Publishing, 2020.

MLA (9th ed.) Citation

Sahar, Ahmad, and Craig Clayton. IOS 13 Programming for Beginners - Fourth Edition. 4th edition. Packt Publishing, 2020.

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