Heffernan, J. A. W., Lincoln, J. E., & Atwill, J. (2001). Writing, a college handbook (5th ed.). W.W. Norton.
Lua i Stíl Chicago (17ú heag.)Heffernan, James A. W., John E. Lincoln, agus Janet Atwill. Writing, a College Handbook. 5th ed. New York: W.W. Norton, 2001.
Lua MLA (8ú heag.)Heffernan, James A. W., et al. Writing, a College Handbook. 5th ed. W.W. Norton, 2001.
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