TY  - BOOK
AU  - Bigham,Truman C.
TI  - Transportation : : principles and problems 
U1  - 380.5 BIG  
PY  - 1947///.
CY  - New York : 
PB  - McGraw-Hill Book Company, Inc., 
KW  - Transportation
KW  - United States
N1  - Includes index.
ER  -