Clark, Ailsa McGown. <br/><br/>
The echinoderms of Southern Africa / 
Ailsa M. Clark and Jane C. 
 - London :  British Museum,  1976. 
 - 277 p. :  ill. ;  26 cm. 
<br/><br/> Closed. 
<br/><br/><label>ISBN: </label>0565007769 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Echinodermata--Africa, Soutehrn.