APA (7th ed.) Citation

Ludwig, J. (2006). Louise Otto-Peters und Robert Blum.

Chicago Style (17th ed.) Citation

Ludwig, Johanna. Louise Otto-Peters Und Robert Blum. 2006.

MLA (9th ed.) Citation

Ludwig, Johanna. Louise Otto-Peters Und Robert Blum. 2006.

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