Methods for aquatic toxicity identification evaluations.   Phase II I   Toxicity confirmation procedures / 
Donald I. Mount 
 - Washington, D.C. :  United States Environmental Protection Agency,  1989. 
 - 1 v. (var. pagings) :  ill. ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Toxicity testing.<br/>Water-pollution-- Toxicology.
<br/><br/><label>Dewey Class. No.: </label>615.907