Walker C.H. et.al. <br/><br/>
Principle of Ecotoxicology 

 - USA  CRS press  2006 
 - 315p.:ill.;  pbk 
<br/><br/><label>ISBN: </label>1008493 3635X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution - Environmental aspects--Environmental toxicology--Nature - Effect of human being on.