APA (7th ed.) Citation

Griffiths, D., & Griffiths, D. (2019). Head first Kotlin: A brain-friendly guide (First edition.). O'Reilly.

Chicago Style (17th ed.) Citation

Griffiths, Dawn, and David Griffiths. Head First Kotlin: A Brain-friendly Guide. First edition. Beijing: O'Reilly, 2019.

MLA (9th ed.) Citation

Griffiths, Dawn, and David Griffiths. Head First Kotlin: A Brain-friendly Guide. First edition. O'Reilly, 2019.

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