TY  - BOOK
AU  - Locklin,David Philip
TI  - Economics of transportation.
T2  - The Irwin series in economics
U1  - 380.5 
PY  - 1969///
CY  - Homewood, Ill.
PB  - R. D. Irwin
KW  - Transportation
KW  - United States
KW  - Railroads
ER  -