TY  - BOOK
AU  - Hershaft,A.
TI  - Critical review of estimating benefits of air and water pollution control
U1  -  628.1 
PY  - 0000///[n.d.]
CY  - Washington, D.C.
PB  - U.S. of Environmental Protection Agency
KW  - Water
KW  - Purification
KW  - Sewage
N1  - Contrast
ER  -