Dawes Ben <br/><br/>
The Ray Society  The Trematoda of british fishes 

 - London  ray soceity  1947 
 - 144p. : ill , 21 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science 
<br/><br/><label>Universal Decimal Class. No.: </label>5  / F26