Chicago: Mark Twain, "Preface," A Connecticut Yankee in King Arthur’s Court Original Sources, accessed May 3, 2025, http://www.originalsources.com/Document.aspx?DocID=JB4NKTMYS71F821.
MLA: Twain, Mark. "Preface." A Connecticut Yankee in King Arthur’s Court, Original Sources. 3 May. 2025. http://www.originalsources.com/Document.aspx?DocID=JB4NKTMYS71F821.
Harvard: Twain, M, 'Preface' in A Connecticut Yankee in King Arthur’s Court. Original Sources, retrieved 3 May 2025, from http://www.originalsources.com/Document.aspx?DocID=JB4NKTMYS71F821.