APA Citatie

Withrow, J. (1987). Effective Writing: Writing Skills for Intermediate Students of American English; Student"s Book. Cambridge: Cambridge University.

Chicago Style citaat

Withrow, Jean. Effective Writing: Writing Skills for Intermediate Students of American English; Student"s Book. Cambridge: Cambridge University, 1987.

MLA citatie

Withrow, Jean. Effective Writing: Writing Skills for Intermediate Students of American English; Student"s Book. Cambridge: Cambridge University, 1987.