Shergold, J. H. <br/><br/>
Classification and review of the trilobite order, Agnostida Salter, 1864 :  an Australian perspective / 
by J. H. Shergold, J. R. Laurie & Sun Xiaowen. 
 - Canberra :  Australian Govt. Pub. Service,  1990. 
 - iv, 92 p. : 
<br/><br/><label>ISBN: </label>0644123079 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleontology
<br/><br/><label>Dewey Class. No.: </label>560.994  / Cl