Tasch, Paul <br/><br/>
Paleobiology of the invertebrates 

 - Canada  John-Wiley  1973 
<br/><br/><label>ISBN: </label>0-471-84570-1 
<br/><br/><label>Subjects--Index Terms: </label>Phylum beyond census 
<br/><br/><label>Dewey Class. No.: </label>562  / L3;1