Grzechnik, M. (2012). Regional histories and historical regions: The concept of the Baltic Sea region in Polish and Swedish historiographies. Peter Lang.
Chicago-referens (17:e uppl.)Grzechnik, Marta. Regional Histories and Historical Regions: The Concept of the Baltic Sea Region in Polish and Swedish Historiographies. Frankfurt am Main: Peter Lang, 2012.
MLA-referens (9:e uppl.)Grzechnik, Marta. Regional Histories and Historical Regions: The Concept of the Baltic Sea Region in Polish and Swedish Historiographies. Peter Lang, 2012.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.