Withrow, J. (1990). Effective writing. Writing skills for intermediate students of american english. Student' s book (4a. ed.). Cambridge University.
Chicago Style (17th ed.) CitationWithrow, Jean. Effective Writing. Writing Skills for Intermediate Students of American English. Student' S Book. 4a. ed. Cambridge: Cambridge University, 1990.
MLA (9th ed.) CitationWithrow, Jean. Effective Writing. Writing Skills for Intermediate Students of American English. Student' S Book. 4a. ed. Cambridge University, 1990.
Warning: These citations may not always be 100% accurate.