Author: Heine, Fr., 1929.:
Title: Die Inoceramen des mittelwelsfälischen Emschers und unteren Untersenons. [Abh. Preuss. Geol. Landesanst., N.F., 120.]
Description: Berlin 1929. Large 8vo. Pp. 124, many illustr. on 19 plates, 1 fold. plate of diagrams, bibliogr. Plain new wrappers. Crease in title leaf, good otherwise. - Also pubished as the author's doctoral dissertation.

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