Fundamentals of Ecology/ 
Odum, Eugene P. 
 - 5th ed. 
 - Andover:  Cengage Learning,  2005. 
 - xviii, 598p. 
<br/><br/><label>ISBN: </label>9788131500200 
<br/><br/><label>Dewey Class. No.: </label>577  / ODU/F