Day, J., & Jeremy Day. (2014). Unlock: Listening and speaking skills. Cambridge: Cambridge University Press.
Trích dẫn kiểu ChicagoDay, Jeremy, và Jeremy Day. Unlock: Listening and Speaking Skills. Cambridge: Cambridge University Press, 2014.
Deismireacht MLADay, Jeremy, và Jeremy Day. Unlock: Listening and Speaking Skills. Cambridge: Cambridge University Press, 2014.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.