MLA

Frith, John, 1503-1533, Luther, Martin, 1483-154. A pistle to the Ch[riste]n reader. The Revelation of Antichrist. Antithesis, wherin ar[e] compared to geder, Christes actes and oure h[o]lye father the [pope]s.. anno. M.CCCCC.XXIX [1529]. https://collections.library.yale.edu/catalog/2020910.

APA, 6th edition

Frith, John, 1503-1533, & Luther, Martin, 1483-154. (anno. M.CCCCC.XXIX [1529])[A pistle to the Ch[riste]n reader. The Revelation of Antichrist. Antithesis, wherin ar[e] compared to geder, Christes actes and oure h[o]lye father the [pope]s.]. https://collections.library.yale.edu/catalog/2020910.