TY  - BOOK
ED  -  United States. 
TI  -  Technical support document for water quality-based toxics control
U1  -  363.61 
PY  - 1991///
CY  -  Washington, D.C. : 
PB  -  United States Environmental Protection Agency, 
KW  -  Water quality
KW  -  United States
KW  -  Water x Standards
KW  -  Water
KW  -  Pollution
KW  -  Toxicology
ER  -