Tables Showing Difference of Level in Feet, Corresponding to a Given Angle When the Distance Is Read in Metres or Feet, and for Horizontal Reductions, for Use with Stadia (Classic Reprint): Buy Tables Showing Difference of Level in Feet, Corresponding to a Given Angle When the Distance Is Read in Metres or Feet, and for Horizontal Reductions, for Use with Stadia (Classic Reprint) by Ockerson John Augustus at Low Price in India