Clarkson, E. N. K. <br/><br/>
Invertebrate palaeontology and evolution / 
E. N. K. Clarkson. 
 - London ;  Boston :  G. Allen & Unwin,  1979. 
 - x, 323 p. : ill. ;  Pbk 
<br/><br/><label>ISBN: </label>0045600082 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrates, Fossil.
<br/><br/><label>LC Class. No.: </label>QE770 .C6 1979  / .C6 1979 
<br/><br/><label>Dewey Class. No.: </label>562