The origin of major invertebrate groups/ 
edited by M.R.House. 
 - London:  Published for the Systematic Association by Academic Press,  1979. 
 - 515 pages;    ill. ,   24 cm. 
 - The systematics Association special volume  no.12 .
<br/><br/> 'Proceedings of a symposium held at the University of Hull' 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrates, Fossil.<br/>Invertebrates--Evolution.