Hill, D. J. (1877). The science of rhetoric: An introduction to the law of effective discourse. Sheldon & Co..
Chicago-referens (17:e uppl.)Hill, David Jayne. The Science of Rhetoric: An Introduction to the Law of Effective Discourse. New York: Sheldon & Co., 1877.
MLA-referens (8:e uppl.)Hill, David Jayne. The Science of Rhetoric: An Introduction to the Law of Effective Discourse. Sheldon & Co., 1877.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.