APA (7th ed.) Citation

Wyner, G. (2014). Fluent forever: How to learn any language fast and never forget it (First Edition.). Harmony Books.

Chicago Style (17th ed.) Citation

Wyner, Gabriel. Fluent Forever: How to Learn Any Language Fast and Never Forget It. First Edition. New York: Harmony Books, 2014.

MLA (9th ed.) Citation

Wyner, Gabriel. Fluent Forever: How to Learn Any Language Fast and Never Forget It. First Edition. Harmony Books, 2014.