Earthworm ecology and biogeography in North America. 
edited by Paul  F Hendrix. 
 - London.  Lewis Publishers.  c1995 
 - 8,244p. : aps. ; 2cm. 
<br/><br/><label>ISBN: </label>1566700531 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earthworms-North America-Geographical Distribution
<br/><br/><label>Dewey Class. No.: </label>595.146  / H  EN