APA (7th ed.) Citation

Wyner, G. (2014). Fluent forever (revised edition): How to learn any language fast and never forget it.

Chicago Style (17th ed.) Citation

Wyner, Gabriel. Fluent Forever (revised Edition): How to Learn Any Language Fast and Never Forget It. 2014.

MLA (8th ed.) Citation

Wyner, Gabriel. Fluent Forever (revised Edition): How to Learn Any Language Fast and Never Forget It. 2014.

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