Williams,D.J.Watson Gillian <br/><br/>
The Armoured Scales(Dias-Pididae0-Part i 

 - U.K  CAB International institute o  f entomolog1988 
 - 290p. 
<br/><br/><label>ISBN: </label>851986080 
<br/><br/><label>Dewey Class. No.: </label>632.7'52