TY  - BOOK
AU  - Beltrami,Edward J.
TI  - Models for public systems analysis
T2  - Operations research and industrial engineering
SN  - 0120855658
AV  - HD4431 B44
PY  - 1977///
CY  - New York
PB  - Academic
KW  - Servicios municipales
KW  - Modelos matematicos
ER  -