MLA
Luther, Martin, 1483-1546. Secundvs tomvs enarrationum in Epistolas & Evangelia : ut vulgo vocant, lectiones illas, quæ in Missa sestis diebus ex historiis Evangelicis & scriptis Apostolicis solent recitari. 1525. Richard C. Kessler Reformation Collection. Pitts Theology Library. https://digital.library.emory.edu/purl/672b8gtks7-cor.
APA, 6th edition
Luther, Martin, 1483-1546. (1525)[Secundvs tomvs enarrationum in Epistolas & Evangelia : ut vulgo vocant, lectiones illas, quæ in Missa sestis diebus ex historiis Evangelicis & scriptis Apostolicis solent recitari]. Richard C. Kessler Reformation Collection, Pitts Theology Library. https://digital.library.emory.edu/purl/672b8gtks7-cor.
Chicago
Luther, Martin, 1483-1546, Secundvs tomvs enarrationum in Epistolas & Evangelia : ut vulgo vocant, lectiones illas, quæ in Missa sestis diebus ex historiis Evangelicis & scriptis Apostolicis solent recitari, 1525, Richard C. Kessler Reformation Collection, Pitts Theology Library. https://digital.library.emory.edu/purl/672b8gtks7-cor.