Cita APA (7a ed.)

Coe, N., Rycroft, R., & Ernest, P. (2006). Writing skills: A problem-solving approach for upper-intermediate and more advanced students (1st. ed.). Cambridge University.

Cita Chicago Style (17a ed.)

Coe, Norman, Robin Rycroft, y Pauline Ernest. Writing Skills: A Problem-solving Approach for Upper-intermediate and More Advanced Students. 1st. ed. Cambridge: Cambridge University, 2006.

Cita MLA (9a ed.)

Coe, Norman, et al. Writing Skills: A Problem-solving Approach for Upper-intermediate and More Advanced Students. 1st. ed. Cambridge University, 2006.