Dyfyniad APA

Winchester, S. (1998). The professor and the madman: Tale of murder, insanity, and the making of the oxford english dictionary (First HarperPerennial edition.). HarperPerennial.

Dyfyniad Arddull Chicago

Winchester, Simon. The Professor and the Madman: Tale of Murder, Insanity, and the Making of the Oxford English Dictionary. First HarperPerennial edition. New York: HarperPerennial, 1998.

Dyfyniad MLA

Winchester, Simon. The Professor and the Madman: Tale of Murder, Insanity, and the Making of the Oxford English Dictionary. First HarperPerennial edition. HarperPerennial, 1998.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.