Chapman JL  & Reiss MJ <br/><br/>
Ecology-Principles and Applications .-2nd edn .-978-81-0-521-68920-5 

 - 2nd edn  
 -  Cambridge University Press, Cambridge,UK, Cambridge  2012 
<br/><br/><label>ISBN: </label>978-81-0-521-68920-5 
<br/><br/><label>Dewey Class. No.: </label>I:5   P12/B27336