Author: Nöring, F.K., 1939.:
Title: Das Unterdevon im westlichen Hunsrück. [Abh. Preuss. Geol. Landesanst., N.F., 192.]
Description: Berlin. Large 8vo. Pp. 96, 8 pls. of photos, maps, and sections, 11 figs., bibl. Orig. printed wrs.

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