Clarkson, E. N. K.  1937- <br/><br/>
Invertebrate palaeontology and evolution / 
E. N. K. Clarkson 
 - 4th ed. 
 - Oxford :  Blackwell Science,  1998 
 - xiv, 452 p. :  ill. ;  25 cm 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0632052384  RM115.00 
<br/><br/><label>LCCN: </label>2001-265988 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrates, Fossil