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by Alexander Wetmore, Arthur Edgerton Seamans, Arthur Stevens Rhoads, Charles E. Chambliss, Edward Lawrence Griffin, Frank Cummings Cook, Frank Robotka, George Lawrence Keenan, George Leslie Bidwell, Harold Hall McKinney, John Shaw Boyce, Joseph Stuart Caldwell, Joshua John Skinner, Oscar Roland Mathews, Ralph Hoagland, Robert Claude Wright, Rolf Thelen, Samuel Weis Mendum, Smulyan M. T. (Marcus Thomas), Thomas Henry Kearney, United States. Bureau of Public Roads, William Ransom Meadows, Bailey Edgar Brown, George Frederick Taylor, John Mitchell Jenkins, Leslie Edward Bopst, Norman Eugene McIndoo, Walter Harrison Larrimer, William Gardiner Blair, Frederic Robertson Reid, John Dominic Bowling ยท 1922
ISBN: Unavailable
Category: Unavailable
Page count: 31
And conclusions. pp. 14.