Herdman, W  A <br/><br/>
Report to the government of ceylon on the pearl oyster fisheries of the gulf of mannar (vol. 5) 

 - London  Royal society  1905 
<br/><br/><label>Subjects--Index Terms: </label>Pearl fishing  Oysters  Mollusk fisheries 
<br/><br/><label>Dewey Class. No.: </label>639.412