TY  - BOOK
AU  - Ortuzar, Juan de Dios
AU  - Willumsen, Luis G.
TI  - Modeling transport
SN  - 9780470760390
U1  - 388.015118/ ORM 
PY  - 2011///
CY  - New Jersy
PB  - Wiley.
KW  - Transportation- Mathematical models
ER  -