Luther, M. (1520). Doctoris Martini Luther Appellation odder beruffung an ain Christlich frei Conciliu[m] von dem Babst Leo vnd seine[m] vnrecht[e]n freuel vorneweret vnd repetiret: Wittembergk M.D.xx. [publisher not identified].
Chicago Style (17th ed.) CitationLuther, Martin. Doctoris Martini Luther Appellation Odder Beruffung an Ain Christlich Frei Conciliu[m] Von Dem Babst Leo Vnd Seine[m] Vnrecht[e]n Freuel Vorneweret Vnd Repetiret: Wittembergk M.D.xx. [Augsburg]: [publisher not identified], 1520.
MLA (8th ed.) CitationLuther, Martin. Doctoris Martini Luther Appellation Odder Beruffung an Ain Christlich Frei Conciliu[m] Von Dem Babst Leo Vnd Seine[m] Vnrecht[e]n Freuel Vorneweret Vnd Repetiret: Wittembergk M.D.xx. [publisher not identified], 1520.
Warning: These citations may not always be 100% accurate.