APA (7th ed.) Citation

Luther, M. (1521). Von der freyhait ains Christen menschen. [Otmar].

Chicago Style (17th ed.) Citation

Luther, Martin. Von Der Freyhait Ains Christen Menschen. [Augsburg]: [Otmar], 1521.

MLA (9th ed.) Citation

Luther, Martin. Von Der Freyhait Ains Christen Menschen. [Otmar], 1521.

Warning: These citations may not always be 100% accurate.