Author: Heinonen, L., 1957.:
Title: Studies on the microfossils in the tills of the North European glaciation.
Description: [Ann. Acad. Sci. Fenn., Ser. A, III, Geol., 52.] Helsinki. 8vo. Pp. 92, 5 figs., tabs., refs. Orig. wrs. - Almost exclusively on pollen and spores.

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