Cita APA (7a ed.)

Styring, J., & Tims, N. (2019). Prepare: B1 Level 4, Student's book (Second edition.). Cambridge University Press.

Cita Chicago Style (17a ed.)

Styring, James, y Nicholas Tims. Prepare: B1 Level 4, Student's Book. Second edition. Cambridge: Cambridge University Press, 2019.

Cita MLA (9a ed.)

Styring, James, y Nicholas Tims. Prepare: B1 Level 4, Student's Book. Second edition. Cambridge University Press, 2019.