Clarkson, E. N. K. <br/><br/>
Invertebrate palaeontology and evolution / 
E. N. K. Clarkson 
 - Second edition. 
 - London :  Allen & Unwin,  1986. 
 - xiii, 382 pages :   illustrations ;   26 cm. 
<br/><br/>Includes bibliography and index.<br/> 
<br/><br/><label>ISBN: </label>0045600104 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology
<br/><br/><label>Dewey Class. No.: </label>562  / CLA