Easton, W H <br/><br/>
Invertebrate paleontology 

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 - Harper & Row Publishers, New York  1960 
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 - Harper's Geoscience Series .
<br/><br/>  
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleoecology and fossils of specific environments
<br/><br/><label>Dewey Class. No.: </label>560.45  EAS-I