TY  - BOOK
AU  - Tomas, Edwin N,
AU  - Schofer, Joseph L
TI  - Introduction to a systems approach to transportation problems
AV  - HE181 T43
PY  - 1966///
CY  - Evanston, lii.
PB  - The transportation center at northwes- tern University
KW  - Transporte
ER  -