Wren, W., & Lindsay, S. (2019). Cambridge Grammar And Writing Skills Learner's Book 6 (1st.). Cambridge University Press.
Citação norma ChicagoWren, Wendy, and Sarah Lindsay. Cambridge Grammar And Writing Skills Learner's Book 6. 1st. UK: Cambridge University Press, 2019.
Citação norma MLAWren, Wendy, and Sarah Lindsay. Cambridge Grammar And Writing Skills Learner's Book 6. 1st. Cambridge University Press, 2019.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.