Hyman, Libbie Henrietta <br/><br/>
Invertebrates  :Platyhel minthes and rhynchocoela, v2 

 - Newyork  Mcgraw hill  1951 
<br/><br/><label>Subjects--Index Terms: </label>
<br/><br/><label>Dewey Class. No.: </label>592  / H0.2;1