Holborn, H. (1969). A history of modern Germany. Knopf.
Lua i Stíl Chicago (17ú heag.)Holborn, Hajo. A History of Modern Germany. New York: Knopf, 1969.
Lua MLA (8ú heag.)Holborn, Hajo. A History of Modern Germany. Knopf, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.