Th. Mortensen <br/><br/>
Papers from the department of Marine biology of the Carnegie institution of Washington  -Vol.16 

 - Washington  The Carnegie institution of Washington  1920 
 -  94p. : ill ; 26 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>1920<br/>Science
<br/><br/><label>Universal Decimal Class. No.: </label>2  / E16