EASTAHALAM, L.E.S. SAUNDERS, J.J. <br/><br/>
INVERTEBRATA : A MANUAL FOR THE USE OF STUDENTS 

 - Cambridge  Cambridge University Press, Cambridge   1977 
<br/><br/><label>ISBN: </label>0 521 04285 2 
<br/><br/><label>Dewey Class. No.: </label>592  / EAS/IN