Hagen, W. W. (1980). Germans, Poles, and Jews: The nationality conflict in the Prussian East, 1772-1914. The Univ. of Chicago Press.
Chicago-referens (17:e uppl.)Hagen, William W. Germans, Poles, and Jews: The Nationality Conflict in the Prussian East, 1772-1914. Chicago [u.a.]: The Univ. of Chicago Press, 1980.
MLA-referens (8:e uppl.)Hagen, William W. Germans, Poles, and Jews: The Nationality Conflict in the Prussian East, 1772-1914. The Univ. of Chicago Press, 1980.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.