Handford, M., Koester, A., Lisboa, M., & Pitt, A. (2012). Business advantage: Upper-intermediate. Cambridge: Cambridge University Press.
Παραπομπή Chicago StyleHandford, Michael., Almut Koester, Martin Lisboa, και Angela Pitt. Business Advantage: Upper-intermediate. Cambridge: Cambridge University Press, 2012.
Παραπομπή MLAHandford, Michael., Almut Koester, Martin Lisboa, και Angela Pitt. Business Advantage: Upper-intermediate. Cambridge: Cambridge University Press, 2012.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.