Cotton D. David, Falvey D. David, & Kent S. Simon. (2006). Market Leader. Upper Intermediate Business English Course Book. Harlow, Longman, 2006.
Citazione stile Chigago Style (17a edizione)Cotton D. David, Falvey D. David, e Kent S. Simon. Market Leader. Upper Intermediate Business English Course Book. Harlow, Longman, 2006, 2006.
Citatione MLA (9a ed.)Cotton D. David, et al. Market Leader. Upper Intermediate Business English Course Book. Harlow, Longman, 2006, 2006.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.