Edwards, C. A., <br/><br/>
Biology and ecology of earthworms /  
by C. A. Edwards, P. J. Bohlen. 
 - Third Edition. 
 - xii,426 pages ;  24 cm. 
<br/><br/> Includes appendices , bibliographical refrences and index. 
<br/><br/><label>ISBN: </label>0412561603 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Helminthes.<br/>Animal ecology.
<br/><br/><label>Dewey Class. No.: </label>592.64  / E26