Chicago: Henry Wadsworth Longfellow, "Act II. The Dungeons In The Citadel," Fragments, ed. Callaway, Morgan, Jr., 1962- in The Complete Poetical Works of Henry Wadsworth Longfellow (New York: George E. Wood, 1850), Original Sources, accessed March 29, 2023, http://www.originalsources.com/Document.aspx?DocID=LIXI5DG7IEA8UPN.
MLA: Longfellow, Henry Wadsworth. "Act II. The Dungeons In The Citadel." Fragments, edited by Callaway, Morgan, Jr., 1962-, in The Complete Poetical Works of Henry Wadsworth Longfellow, New York, George E. Wood, 1850, Original Sources. 29 Mar. 2023. http://www.originalsources.com/Document.aspx?DocID=LIXI5DG7IEA8UPN.
Harvard: Longfellow, HW, 'Act II. The Dungeons In The Citadel' in Fragments, ed. . cited in 1850, The Complete Poetical Works of Henry Wadsworth Longfellow, George E. Wood, New York. Original Sources, retrieved 29 March 2023, from http://www.originalsources.com/Document.aspx?DocID=LIXI5DG7IEA8UPN.