Cita APA (7th ed.)

Pile, L. (2005). Market leader: Intermediate business English test file (2a. ed.). Pearson Education Limited.

Cita Chicago (17th ed.)

Pile, Louise. Market Leader: Intermediate Business English Test File. 2a. ed. Essex: Pearson Education Limited, 2005.

Cita MLA (9th ed.)

Pile, Louise. Market Leader: Intermediate Business English Test File. 2a. ed. Pearson Education Limited, 2005.