Chicago: G. K. Chesterton, "Preface," Orthodoxy, trans. Müller, F. Max (Friedrich Max), 1823-1900 in Orthodoxy Original Sources, accessed April 18, 2021, http://www.originalsources.com/Document.aspx?DocID=PTCHPTXQCY1LYVB.
MLA: Chesterton, G. K. "Preface." Orthodoxy, translted by Müller, F. Max (Friedrich Max), 1823-1900, in Orthodoxy, Original Sources. 18 Apr. 2021. www.originalsources.com/Document.aspx?DocID=PTCHPTXQCY1LYVB.
Harvard: Chesterton, GK, 'Preface' in Orthodoxy, trans. . cited in , Orthodoxy. Original Sources, retrieved 18 April 2021, from http://www.originalsources.com/Document.aspx?DocID=PTCHPTXQCY1LYVB.