Cotton, D., Falvey, D., & Kent, S. (2006). Market leader: Upper intermediate business English course book (2a. ed.). Pearson Education Limited.
Citazione stile Chigago Style (17a edizione)Cotton, David, David Falvey, e Simon Kent. Market Leader: Upper Intermediate Business English Course Book. 2a. ed. Essex: Pearson Education Limited, 2006.
Citatione MLA (9a ed.)Cotton, David, et al. Market Leader: Upper Intermediate Business English Course Book. 2a. ed. Pearson Education Limited, 2006.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.