Track design and construction /
National Research Council (U.S.). Transportation Research Board.
- Washington, D.C. : Transportation Research Board, National Research Council, 1985.
- iv, 60 p. : ill., map ; 29 cm.
- Transportation research record ; 1006 .
0309038162
Railroads--Track.
TE7 TF240 / .H5 no. 1006
380.5 s 625.1/4�19
0309038162
Railroads--Track.
TE7 TF240 / .H5 no. 1006
380.5 s 625.1/4�19