TY  - BOOK
AU  - Scheppach,Raymond C.
AU  - Woehlcke,L.Carl
TI  - Transportation productivity : : measurement and policy applications 
SN  - 0669962147
U1  - 380.5 
PY  - 1975///.
CY  - London : 
PB  - Lexington Books, 
KW  - Industrial productivity
KW  - Transportation
ER  -