Echinodermata 
edited by B F Keegan, Brendan D S O'Connor 
 - 1st ed 
 - Rotterdam  A.A. Balkema  1985 
 - xvii, 662 p. : ill., maps, ports. ; 26 cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9789061915966 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Echinodermata
<br/><br/><label>Dewey Class. No.: </label>593.9 KEE