APA-referens (7:e uppl.)
Wetzel, D. (2012). A duel of nations: Germany, France, and the diplomacy of the War of 1870-1871. University of Wisconsin Press.
Chicago-referens (17:e uppl.)
Wetzel, David. A Duel of Nations: Germany, France, and the Diplomacy of the War of 1870-1871. Madison: University of Wisconsin Press, 2012.
MLA-referens (9:e uppl.)
Wetzel, David. A Duel of Nations: Germany, France, and the Diplomacy of the War of 1870-1871. University of Wisconsin Press, 2012.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.