Testing for effects of chemical on ecosystems  a report 
by the Committee to Review Methods for Ecotoxicology, Environmental Studies Board, Commission on Natural Resources, National Research Council 
 - Washington, D. C.  National Academy Press  1981 
 - xv, 103p. :  ill. ;  23cm 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>0309031427 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemicals--Environmental aspects<br/>Toxicity testing<br/>Environmental monitoring