Chicago: Johann Christoph Friedrich von Schiller, "Preface," The History of the Thirty Years’ War, ed. Braybrooke, Richard Griffin, Baron, 1783-1853 and trans. Ingram, J. H. (James Henry) in The History of the Thirty Years’ War (New York: Doubleday, Page, 1909), Original Sources, accessed April 11, 2025, http://originalsources.com/Document.aspx?DocID=93FG5KHRZPS5E2I.
MLA: von Schiller, Johann Christoph Friedrich. "Preface." The History of the Thirty Years’ War, edited by Braybrooke, Richard Griffin, Baron, 1783-1853, and translated by Ingram, J. H. (James Henry), in The History of the Thirty Years’ War, Vol. 36, New York, Doubleday, Page, 1909, Original Sources. 11 Apr. 2025. http://originalsources.com/Document.aspx?DocID=93FG5KHRZPS5E2I.
Harvard: von Schiller, JC, 'Preface' in The History of the Thirty Years’ War, ed. and trans. . cited in 1909, The History of the Thirty Years’ War, Doubleday, Page, New York. Original Sources, retrieved 11 April 2025, from http://originalsources.com/Document.aspx?DocID=93FG5KHRZPS5E2I.