Withrow, J. 1. (1987). Effective writing: Writing skills for intermediate students of American English : student’s book. Cambridge [Cambridgeshire]: Cambridge University Press.
Citação norma ChicagoWithrow, Jean 1937-. Effective Writing: Writing Skills for Intermediate Students of American English : Student’s Book. Cambridge [Cambridgeshire]: Cambridge University Press, 1987.
Citação norma MLAWithrow, Jean 1937-. Effective Writing: Writing Skills for Intermediate Students of American English : Student’s Book. Cambridge [Cambridgeshire]: Cambridge University Press, 1987.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.