TY  - BOOK
AU  - Welson, John R.
AU  - Stevens,Benjamin H.
TI  - Air quality and its relationship to economic, meteorological, and other structural characteristics of urban areas in the United States: by ... and Benjamin H. Stevens
AV  - TD883 W44 
PY  - 1970///
CY  - Philadelphia
PB  - Regional Science Research Institute
KW  - Air
KW  - Pollution
ER  -