The biodiversity of microorganisms and invertebrates :  its role in sustainable agriculture :  proceedings of the First Workshop ... July 1990 / 
edited by D. L. Hawksworth 
 - Wallingford, Oxon :  C. A. B. International,  1991 
 - 302 p. ;  24 cm. 
 - CASAFA report series ;  4 .
<br/><br/><label>ISBN: </label>0851987222 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microorganisms--Congresses<br/>Invertebrates--Congresses