Clark, Hubert Lyman <br/><br/>
A handbook of the littoral echinoderms of Porto Rico and the other West Indian Islands 
Hubert Lyman Clark. 
 - New York  New York Academy of Sciences  1933. 
 - 147 p.  ill.  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 137-139. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Echinodermata--Puerto Rico.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico