Cita APA (7a ed.)

Wren, W., & Lindsay, S. (2019). Cambridge Grammar And Writing Skills Learner's Book 6 (1st.). Cambridge University Press.

Cita Chicago Style (17a ed.)

Wren, Wendy, y Sarah Lindsay. Cambridge Grammar And Writing Skills Learner's Book 6. 1st. UK: Cambridge University Press, 2019.

Cita MLA (9a ed.)

Wren, Wendy, y Sarah Lindsay. Cambridge Grammar And Writing Skills Learner's Book 6. 1st. Cambridge University Press, 2019.