Cita APA (7a ed.)

Hertkens, J. (1885). Erinnerungen an Professor Dr. Christoph Bernard Schlüter. M. Stoffels.

Cita Chicago Style (17a ed.)

Hertkens, Johann. Erinnerungen an Professor Dr. Christoph Bernard Schlüter. Viersen: M. Stoffels, 1885.

Cita MLA (9a ed.)

Hertkens, Johann. Erinnerungen an Professor Dr. Christoph Bernard Schlüter. M. Stoffels, 1885.