Lankester, E Ray, Ed. <br/><br/>
Treatise on zoology, Part4: The platyhelmia, mesozoa and nemertini 

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 - Adam & Charles Black, London  1964 
 - 204 
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<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural history of animals
<br/><br/><label>Dewey Class. No.: </label>591  LAN-T.4