Cita APA (7a ed.)

Withrow, J. (1987). Effective writing: Writing skills for intermediate students of American English. Student's book. University Press.

Cita Chicago Style (17a ed.)

Withrow, Jean. Effective Writing: Writing Skills for Intermediate Students of American English. Student's Book. Cambridge [etc.]: University Press, 1987.

Cita MLA (9a ed.)

Withrow, Jean. Effective Writing: Writing Skills for Intermediate Students of American English. Student's Book. University Press, 1987.