Ostrowska, S., & Sabina Ostrowska. (2014). Unlock: Listening and speaking skills. Cambridge: Cambridge University Press.
Style de citation ChicagoOstrowska, Sabina, et Sabina Ostrowska. Unlock: Listening and Speaking Skills. Cambridge: Cambridge University Press, 2014.
Style de citation MLAOstrowska, Sabina, et Sabina Ostrowska. Unlock: Listening and Speaking Skills. Cambridge: Cambridge University Press, 2014.
Attention : ces citations peuvent ne pas être correctes à 100%.