APA (7th ed.) Citation

Jones, L. Progress to proficiency [Ηχογράφηση]. Cambridge University Press.

Chicago Style (17th ed.) Citation

Jones, Leo. Progress to Proficiency [Ηχογράφηση]. Cambridge: Cambridge University Press.

MLA (8th ed.) Citation

Jones, Leo. Progress to Proficiency [Ηχογράφηση]. Cambridge University Press.

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