Catalogue of the Blastoidea in the geological department of the British museum (natural history) with an account of the morphology and systematic position of the group and a revision of the genera and species / 
illustrated by 20 lithographic plates by Robert Etheridge and P. Herbert Carpenter 
 - London :  Printed by Order of the Trustees,  1886 
 - 322 p. :  ill. ;  29 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Blastoidea