Wyner, G. (2014). Fluent forever (revised edition): How to learn any language fast and never forget it.
Cita Chicago Style (17a ed.)Wyner, Gabriel. Fluent Forever (revised Edition): How to Learn Any Language Fast and Never Forget It. 2014.
Cita MLA (8a ed.)Wyner, Gabriel. Fluent Forever (revised Edition): How to Learn Any Language Fast and Never Forget It. 2014.
Precaución: Estas citas no son 100% exactas.