Cita APA (7a ed.)

Holborn, H. (1973). A history of Modern Germany. Knopf.

Cita Chicago Style (17a ed.)

Holborn, Hajo. A History of Modern Germany. New York: Knopf, 1973.

Cita MLA (9a ed.)

Holborn, Hajo. A History of Modern Germany. Knopf, 1973.