Ecology of arable land :  perspectives and challenges proceedings of an International Symposium, 9-12 June 1987 Swedish University of Agricultural Sciences, uppsala, Sweden / 
edited by M. Clarhom, and L. Bergstrom 
 - Dordrecht :  Kluwer Academic Publishers,  1989 
 - 298 p. :  ill. ;  26 cm. 
 - Developments in plant and soil sciences;  no.39 .
<br/><br/>Includes biblographical references 
<br/><br/><label>ISBN: </label>0792304241 
<br/><br/><label>LCCN: </label>89-15587 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural ecology--Congresses<br/>Soil ecology--Congresses<br/>Plant--soil relationshipv Congresses