Gamble, F.W. <br/><br/>
The Cambridge Natural History 

 - London  : Macmillan and Co., Ltd.  1896 
 - 560 p. 
<br/><br/><label>Contenido:</label> <br/>-Flatworms and Mesozoa<br/>  <br/>-Nemertines<br/>  <br/>-Thread-Worms and Sagitta  <br/>-Rotifers  <br/>-Polychaet Worms  <br/>-Earthworms and Leeches  <br/>-Gephyrea and Phoronis  <br/>-Polyzoa 
<br/><br/><label>Dewey Class. No.: </label>595.147