Oswald Boelcke
An Aviator's Field Book Being the field reports of Oswald Bölcke, from August 1, 1914 to October 28, 1916
Oswald Boelcke · 2009
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World War, 1914-1918 -- Personal narratives, GermanWorld War, 1914-1918 -- Aerial operationsBoelcke, Oswald, 1891-1916