Medusae of the world  -Vol.1 

 - Washington  The Carnegie institution of Washington  1910 
 -  xv, 230p. : ill ; 26 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>1910<br/>Science
<br/><br/><label>Universal Decimal Class. No.: </label>2  / E8