Chicago: 
								Martin Luther, "II.Q.Which Sins Should People Confess?," Small Catechism in  The Small Catechism, Triglot Concordia: The Symbolical Books of the Evangelical Lutheran Church (St. Louis: Concordia Publishing House, 1921), 538–559. Original Sources, accessed October 30, 2025, http://www.originalsources.com/Document.aspx?DocID=CQH9UT4RQAKCD86.
								
							
							
								MLA: 
								Luther, Martin. "II.Q.Which Sins Should People Confess?." Small Catechism, in  The Small Catechism, Triglot Concordia: The Symbolical Books of the Evangelical Lutheran Church, St. Louis, Concordia Publishing House, 1921, pp. 538–559. Original Sources. 30 Oct. 2025. http://www.originalsources.com/Document.aspx?DocID=CQH9UT4RQAKCD86.
								
							
							
								Harvard: 
								Luther, M, 'II.Q.Which Sins Should People Confess?' in Small Catechism. cited in  1921, The Small Catechism, Triglot Concordia: The Symbolical Books of the Evangelical Lutheran Church, Concordia Publishing House, St. Louis, pp.538–559. Original Sources, retrieved 30 October 2025, from http://www.originalsources.com/Document.aspx?DocID=CQH9UT4RQAKCD86.