APA (7th ed.) Citation

Koenigsberger, L. (1903). Hermann von Helmholtz. Vieweg.

Chicago Style (17th ed.) Citation

Koenigsberger, Leo. Hermann Von Helmholtz. Braunschweig: Vieweg, 1903.

MLA (9th ed.) Citation

Koenigsberger, Leo. Hermann Von Helmholtz. Vieweg, 1903.