TY  - BOOK
AU  - Wallace,Lance A.
AU  - Ott,Wayne R.
TI  - Rapid Techniques for Calculating the Pollutant Atandards Index:
U1  - 363.7392 
PY  - 1980///
CY  - Washington
PB  - United States Government Printing Office
KW  - Air
KW  - Pollution
KW  - Environmental aspects
KW  - United States
KW  - Air quality management
KW  - social welfare
N1  - EPA-600/4-79-039
ER  -