Gee, Henry <br/><br/>
Before the backbone :  views on the origin of the vertebrates / 
Henry Gee 
 - London :  Chapman & Hall,  1996 
 - 346 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0412483009  RM105.29 
<br/><br/><label>LCCN: </label>95-72203 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vertebrates--Evolution<br/>Vertebrates