Hawksworth, D.L. <br/><br/>
Biodiversity and biosystematic priorities  Microorganisms and invertebrates. 
by D L Hawksworth and J M Ritchie 
 - Wallingford  CAB Intl.  1993 
 - 120p. 
<br/><br/><label>ISBN: </label>0851988873 
<br/><br/><label>Dewey Class. No.: </label>574.5  / N933(CES)