ATWAN, R., & VESTERMAN, W. (1987). Effective writing for the college curriculum. McGraw-Hill Book.
Lua i Stíl Chicago (17ú heag.)ATWAN, Robert, agus William VESTERMAN. Effective Writing for the College Curriculum. New York: McGraw-Hill Book, 1987.
Lua MLA (9ú heag.)ATWAN, Robert, agus William VESTERMAN. Effective Writing for the College Curriculum. McGraw-Hill Book, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.