The biodiversity of microorganisms and intertebrates :  its role in sustainable agriculture : Proceedings of the first workshop on the Ecological Foundations of Sustainable Agriculture (WEFSA) : London , 26-27 July , 1990 / 
edited by D.L. Hawkswork. 
 - Wallingford, UK :  C.A.B. International,  c1991. 
 - xx, 302 p. :  ill. ;  24 cm. 
 - CASAFA report series ;  no. 4 .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological diversity--Congresses.
<br/><br/><label>LC Class. No.: </label>S589.7  / W67 1991