Παραπομπή APA

Learn to speak English: The complete interaction learning solution for non-English speakers of any language background.

Παραπομπή Chicago Style

Learn to Speak English: The Complete Interaction Learning Solution for Non-English Speakers of Any Language Background.

Παραπομπή MLA

Learn to Speak English: The Complete Interaction Learning Solution for Non-English Speakers of Any Language Background.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.