Rafats, Jerry <br/><br/>
Earthworms in agriculture :  january 1986 - october 1991 
/por Jerry Rafats 
 - Maryland, EUA :  National Agricultural Library,  1992 
 - 46 p. 
 - Quick bibliography series  ; 92-16 .
 - Quick bibliography series  ; 92-16 .
<br/><br/><label>ISSN: </label>1052-5378 
<br/><br/><label>LCCN: </label>103497 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bibliografía.<br/>Lombrices de tierra.