Williamson, J E  <br/><br/>
Twenty years under the sea /  
by J E Williamson. 
 - Boston :  Ralph T.hale & Company,  1936. 
 - 320 p. :  ill., map, photos  21 cm. 
 - 77.058:574 (NLA) .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marine biology --Bahamas<br/>Fishes --Bahamas<br/>Photography of fishes
<br/><br/><label>Universal Decimal Class. No.: </label>77.058:574 (NLA)