Shipley, A.E. <br/><br/>
The Cambridge Natural History 

 - London  : Macmillan and Co.  , 1895 
 - 535 p. 
<br/><br/><label>Contenido:</label> <br/>-Molluscs  <br/>-Brachiopods (recent)  <br/>-Brachiopods (fossil)