Walker, C. Hetc <br/><br/>
Principles of ecotoxicology / 

 - 4th ed. 
 - London :  CRC Press ,  2012. 
 - xxv+360 
<br/><br/><label>ISBN: </label>9781439862667 
<br/><br/><label>Subjects--Index Terms: </label>Ecotoxicology