Gronlund, Tuulikki The diatom stratigraphy of the Eemain Balticc Sea on the basis of sediment discoveries in Ostrobotania, Finland - Espoo Geological Survey of Finland 1991 - 26p. 30cm. ISBN: 951-690-418-1 Subjects--Topical Terms: Stratigraphy LC Class. No.: GY QE651.G76