Lipgens, W. (1985). Documents on the History of European Integrations: Continental plans for European Union 1939 - 1945. DeGruyter.
Citazione stile Chigago Style (17a edizione)Lipgens, Walter. Documents on the History of European Integrations: Continental Plans for European Union 1939 - 1945. Berlin; New York: DeGruyter, 1985.
Citatione MLA (8a ed.)Lipgens, Walter. Documents on the History of European Integrations: Continental Plans for European Union 1939 - 1945. DeGruyter, 1985.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.