TY  - BOOK
AU  - Pidot,George B.
ED  - United States, Environmental Protection Agency, Office of Research and Development
TI  - Modal cities
PY  - 1974///
CY  - Washington D.C.
PB  - U.S. Environmental Protection Agency
KW  - Cities and towns
KW  - Classification
KW  - United States
KW  - Mathematical models
ER  -