Cita APA (7a ed.)

Kruger, G. (1967). Konrad Adenauer. Friedrich Middelhauve.

Cita Chicago Style (17a ed.)

Kruger, Gerd. Konrad Adenauer. [Berlin]: Friedrich Middelhauve, 1967.

Cita MLA (9a ed.)

Kruger, Gerd. Konrad Adenauer. Friedrich Middelhauve, 1967.