Cita APA (7th ed.)

Coe, N., Rycroft, R., & Ernest, P. (1983). Writing skills: A problem-solving approach for upper-intermediate and more advanced students. Cambridge University Press.

Cita Chicago (17th ed.)

Coe, Norman, Robin Rycroft, i Pauline Ernest. Writing Skills: A Problem-solving Approach for Upper-intermediate and More Advanced Students. Cambridge: Cambridge University Press, 1983.

Cita MLA (9th ed.)

Coe, Norman, et al. Writing Skills: A Problem-solving Approach for Upper-intermediate and More Advanced Students. Cambridge University Press, 1983.