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![Field-Book for Railroad Engineers Circular and Parabolic Curves, Turnouts, Vertical Curves, Levelling, Computing Earth-Work, Transition Curves on New [Paperback]](/itemImage/2/9/8/1/2_5947579.jpg "Field-Book for Railroad Engineers Circular and Parabolic Curves, Turnouts, Vertical Curves, Levelling, Computing Earth-Work, Transition Curves on New [Paperback]")