Tolong jelaskan mengenai Bibliografi dari Heinrich von Treitschke

Treitschke, Heinrich von, Treitschke, his life and works, 1914; online

Heinrich von Treitschke. Treitschke's history of Germany in the nineteenth century: Volume 1 (5th ed 1894; translated 1915); vol 1 online, vol 2 online; vol 3 online; vol 4 online; vol 5 online; vol 6 online; vol 7 online

Heinrich von Treitschke. Germany, France, Russia, & Islam (1915); online

Heinrich von Treitschke.  Politics (English edition 1916); Volume One ; Volume Two