Blaxland Beth <br/><br/>
Invertebrates;Snails ,clams,and thier relatives  

 - New york;  Chelsea House publishing,  2003 
 - 32 pages,  includes colour illustrations,  28 cm 
<br/><br/><label>ISBN: </label>9780791069974 
<br/><br/><label>Dewey Class. No.: </label>594 BLAX