Withrow, J. (1987). Effective Writing: Writing Skills for Intermediate Students of American English; Student"s Book. Cambridge: Cambridge University.
Citação norma ChicagoWithrow, Jean. Effective Writing: Writing Skills for Intermediate Students of American English; Student"s Book. Cambridge: Cambridge University, 1987.
Citação norma MLAWithrow, Jean. Effective Writing: Writing Skills for Intermediate Students of American English; Student"s Book. Cambridge: Cambridge University, 1987.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.