Marshall, A J <br/><br/>
Text book of zoology   : Invertebrates 

 - 7th 
 - London  : MecMillan,   1972 
 - xi, 874 p.  
 - Testbook of Zoology .
<br/><br/> Reprinted-1974 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Zoology <br/>| Invertebrates <br/>| Sipunculida 
<br/><br/><label>Dewey Class. No.: </label>592 M335T