auswärtiges amt Polish documents relative to the origin of the war : first series / Auswärtiges Amt Duitsche Witboek. Documenten over de laatste faze van de Duitsch-Poolsche crisis. Getrouwe en onverkorte geautoriseerde vertaling penguin special Government blue book : documents concerning German-Polish relations and the outbreak of hostilities between Great Britain and Germany on September 3, 1939