APA (7th ed.) Citation

Koenigsberger, L. (1965). Hermann von Helmholtz. Dover Publications.

Chicago Style (17th ed.) Citation

Koenigsberger, Leo. Hermann Von Helmholtz. New York: Dover Publications, 1965.

MLA (8th ed.) Citation

Koenigsberger, Leo. Hermann Von Helmholtz. Dover Publications, 1965.