Chicago: Frederick Jackson Turner, "Dedication," The Frontier in American History (New York: Henry Holt and Company, 1920), Original Sources, accessed June 29, 2022, http://originalsources.com/Document.aspx?DocID=CVB8JX1IICKYZDE.
MLA: Turner, Frederick Jackson. "Dedication." The Frontier in American History, New York, Henry Holt and Company, 1920, Original Sources. 29 Jun. 2022. http://originalsources.com/Document.aspx?DocID=CVB8JX1IICKYZDE.
Harvard: Turner, FJ 1920, 'Dedication' in The Frontier in American History, Henry Holt and Company, New York. Original Sources, retrieved 29 June 2022, from http://originalsources.com/Document.aspx?DocID=CVB8JX1IICKYZDE.