Tynni, Risto <br/><br/>
Diatoms from lake Pulmankijarvi, northern Finland and the coast of Varangerfjorden, northern Norway / 
Risto Tynni. 
 - Espoo, Finland:   Geological Survey of Finland,   1991.  
 - 34 p., XLII plates :  ill., maps ;  30 cm. 
 - Geological Survey of Finland : Report of Investigation. 106  0781-4240 .
<br/><br/>Includes bibliographical references (p. 32-34). 
<br/><br/><label>ISBN: </label>9516904432 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Diatoms, Fossil--Finland
<br/><br/><label>Dewey Class. No.: </label>561.9354897