TY  - BOOK
ED  -  United States. 
TI  -  Methods for measuring the acute toxicity of effluents and receiving waters to fresh water and marine organisms / 
U1  -  571.95   22
PY  - 1991///
CY  -  Ohio : 
PB  -  United States Environmental Protection Agency, 
KW  -  Sewage
KW  -  Purification
N1  -  Includes bibliographical references
ER  -