APA-referens (7:e uppl.)

French, R. Sign conceptions in medicine from the Renaissance to the early 19th century: Roger French. [Semiotik, 2].(1998).

Chicago-referens (17:e uppl.)

French, Roger. "Sign Conceptions in Medicine from the Renaissance to the Early 19th Century: Roger French." [Semiotik, 2].(1998) .

MLA-referens (8:e uppl.)

French, Roger. "Sign Conceptions in Medicine from the Renaissance to the Early 19th Century: Roger French." [Semiotik, 2].(1998), .