Cita APA (7th ed.)
Schmale, F. J. In memoriam Walther Holtzmann.
Cita Chicago (17th ed.)
Schmale, Franz Josef. In Memoriam Walther Holtzmann.
Cita MLA (9th ed.)
Schmale, Franz Josef. In Memoriam Walther Holtzmann.
Atenció: Aquestes cites poden no estar 100% correctes.