TY  - GEN
AU  -   Johnson, Emory R.
AU  -   Huebner, Grover G.
TI  - Transportation economic principles and practices
U1  - 384 
PY  - 1940///
CY  - New York
PB  - Appleton-Century-Crofts
KW  -   Transportation
KW  -   Railroad, economic aspects
ER  -