Cita APA (7a ed.)

Hüsgen, E. (1907). Ludwig Windthorst. J.P. Bachem.

Cita Chicago Style (17a ed.)

Hüsgen, Ed. Ludwig Windthorst. Cöln: J.P. Bachem, 1907.

Cita MLA (9a ed.)

Hüsgen, Ed. Ludwig Windthorst. J.P. Bachem, 1907.