Zimmermann, W. (1878). A popular history of Germany: From the earliest period to the present day. H.J. Johnson.
Chicago-referens (17:e uppl.)Zimmermann, Wilhelm. A Popular History of Germany: From the Earliest Period to the Present Day. New York: H.J. Johnson, 1878.
MLA-referens (8:e uppl.)Zimmermann, Wilhelm. A Popular History of Germany: From the Earliest Period to the Present Day. H.J. Johnson, 1878.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.