johnstone james d.s.c <br/><br/>
The marine plankton 

 - the university press   limited hodder and stoughton limited , london  1924 
 - 194p. : ill ; 23cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Universal Decimal Class. No.: </label>4  / D20