The German giants : the story of the R-planes, 1914-1919 - Haddow, G. W. (George William); Grosz, Peter M. (Peter Michael), 1926- (London : Putnam, 1969)
Bibliography: p. 303-304. and index.
Keywords: Bombers -- Germany; World War, 1914-1918 -- Aerial operations, German; Aeronautics, Military -- Germany