APA (7th ed.) Citation

Hertz, W. (1867). Heinrich von Schwaben. [s.n.].

Chicago Style (17th ed.) Citation

Hertz, Wilhelm. Heinrich Von Schwaben. Stuttgart: [s.n.], 1867.

MLA (9th ed.) Citation

Hertz, Wilhelm. Heinrich Von Schwaben. [s.n.], 1867.

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