du Plat Taylor, Joan (ed.), 1978, Roman shipping and trade: Britain and the Rhine provinces, London: Council for British Archaeology.

Evison, Vera I. (ed.), 1974, Medieval pottery from excavations: studies presented to Gerald Clough Dunning, with a bibliography of his work, London: Adam and Charles Black.

Lucas, Hans, 1965, Kataloge zur mittledeutschen Schnurkeramile, Berlin, VEB Deutscher Verlag der Wissenschaften.

Clark, Chester Wells, 1934, Franz Joseph and Bismark before 1866, Cambridge: Harvard University Press.

Lord, Howard Robert, 1924, The origins of the war of 1870: new documents from the German archvies, Cambridge: Harvard University Press.