APA (7th ed.) Citation

Heyck, E. (1933). Luther (2., bearb. aufl.). Velhagen & Klasing.

Chicago Style (17th ed.) Citation

Heyck, Eduard. Luther. 2., bearb. aufl. Bielefeld und Leipzig: Velhagen & Klasing, 1933.

MLA (8th ed.) Citation

Heyck, Eduard. Luther. 2., bearb. aufl. Velhagen & Klasing, 1933.

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