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1
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2by Bölcke, Oswald, 1891-1916Subjects: “...World War, 1914-1918 Aerial operations....”
Published 1933
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3
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4by Sykes, Claud W. (Claud Walter), 1883-Subjects: “...World War, 1914-1918 Aerial operations, German....”
Published 1994
Book -
5by Haupt-Heyedemarck, Georg Wilhelm, 1891-Subjects: “...World War, 1914-1918 Aerial operations....”
Published 1935
Book -
6by Haupt Heydemarck, 1891-Subjects: “...World War, 1914-1918 Aerial operations....”
Published 1934
Book