Luther, Alex. <br/><br/>
The zoological station Tvärminne 
/ Alex. Luther 
 - Helsinki  : [Centraltryckeriet Helsingfors]  , [1956] 
 - 24 p.  : il.  ; 20 cm. 
<br/><br/><label>Subjects--Chronological Terms: </label><br/>S. XX 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoología--Finlandia