Nielsen, Claus <br/><br/>
Animal evolution :  interrelationships of the living phyla / 
Claus Nielsen 
 - Oxford :  Oxford University Press,  1995 
 - ix, 467 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0198548672  RM102.75 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Phylogeny<br/>Evolution (Biology)