Cita APA (7a ed.)
Warmbrunn, W. (1993). The German occupation of Belgium 1940-1944. Peter Lang.
Cita Chicago Style (17a ed.)
Warmbrunn, Werner. The German Occupation of Belgium 1940-1944. New York: Peter Lang, 1993.
Cita MLA (9a ed.)
Warmbrunn, Werner. The German Occupation of Belgium 1940-1944. Peter Lang, 1993.
Precaución: Estas citas no son 100% exactas.