Earthworn ecology 

 - Boca Raton  CRC Press  2004 
 - 441p.  25cm. 
<br/><br/><label>ISBN: </label>084931819X 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Earthworms - Ecology - Congresses
<br/><br/><label>Dewey Class. No.: </label>592.64  / I5E