Chicago: William Ernest Henley, "Invictus," Plays of William E. Henley and R.L. Stevenson, ed. Macaulay, G. C. (George Campbell), 1852-1915 and trans. Evans, Sebastian in Plays of William E. Henley and R.L. Stevenson Original Sources, accessed February 15, 2025, http://www.originalsources.com/Document.aspx?DocID=5ZXWS4ZC4RZAI4B.
MLA: Henley, William Ernest. "Invictus." Plays of William E. Henley and R.L. Stevenson, edited by Macaulay, G. C. (George Campbell), 1852-1915, and translated by Evans, Sebastian, in Plays of William E. Henley and R.L. Stevenson, Original Sources. 15 Feb. 2025. http://www.originalsources.com/Document.aspx?DocID=5ZXWS4ZC4RZAI4B.
Harvard: Henley, WE, 'Invictus' in Plays of William E. Henley and R.L. Stevenson, ed. and trans. . cited in , Plays of William E. Henley and R.L. Stevenson. Original Sources, retrieved 15 February 2025, from http://www.originalsources.com/Document.aspx?DocID=5ZXWS4ZC4RZAI4B.