Cita APA (7a ed.)

Cotton, D., Falvey, D., & Kent, S. (2013). New language leader: Intermediate (1a. ed.). Pearson education limited.

Cita Chicago Style (17a ed.)

Cotton, David, David Falvey, y Simon Kent. New Language Leader: Intermediate. 1a. ed. England: Pearson education limited, 2013.

Cita MLA (8a ed.)

Cotton, David, et al. New Language Leader: Intermediate. 1a. ed. Pearson education limited, 2013.